A downloadable game

Sonic 3D in 2D is a fangame that reimagines Sonic3D Blast plot and levels with style and structure closer to the games that preceeded it. Explore Flicky Island in a 2D side scrolling platformer that takes elements from the other Mega Drive/Genesis games to re-forge an adventure anew. Fight new and challenging bosses, save Flicky Island and stop Robotnik's final plan to harness the Flicky's power for himself.

Features

  • 15 Acts to explore in 8 Zones
  • 15 Boss Battles that will put your skills to the test
  • All classic shields, including the Golden Shield to use the homing attack with Sonic
  • 3 Playable characters at start (Sonic, Tails, Knuckles).
  • Physics close to the Mega Drive/Genesis games.
  • Lots of Easter Eggs
  • Unlockable Extras for more gameplay options
  • 23 Achievements to tackle
  • The Saturn Soundtrack and customizable soundtrack are available as optional DLC.

Zones


Green Grove Zone: hills are alive with the sound of the Badnik's engines. The Flikies have been turned into robots and it's up to you to blast through the Green Grove and free them!

Rusty Ruin Zone: ancient ruins re-emerged from the sea. Make your way through the ancient traps of a long dead civilization as you keep searching for the Chaos Emeralds!

Spring Stadium Zone: a crazy funhouse of pinball, barrels, bumpers, springs and spike traps! Hone your jumping and bumping skills to survive here!

Diamond Dust Zone: have your snowboard handy? The snowy mountains of Flicky Island are filled with snow and ice. Watch out for explosive snowmen and uncover frozen springs to make your way through.

Volcano Valley Zone: quite a change from the cool slopes! Leap the lava beds and use your spin dash to activate the elevators. Keep an eye out for the Fire Shield to protect yourself from the worst burns of your life.

Gene Gadget Zone: this mixed-up mechazone is chock full of pipes, tubes and wiring. Not to mention electrified floors, shocking fields and industrial fans that will blow you around!

Panic Puppet Zone: looks like Robotnik hasn't even had time to place the flickies into robots. The final confrontation is approaching!

???: find all of the Chaos Emeralds to know more...

Controls

Game controls are set by the user on their first launch and they will map a mega drive/genesis controller. As such the commands for each character are described with the genesis button map (arrows, A, B, C, start). Controls can be changed any time by pressing up and access the "controls" submenu in the title screen.

  • Movement: Arrows
  • Jump: A, B or C on the ground
  • Secondary Action: A, B or C mid air after a jump
  • Super Transformation: C when jumping with 7 Chaos Emeralds and at least 50 rings.
  • Pause the game: Start

Other Controls:

  • F2: resets the game
  • F5: toggle TV filter. No filter, all filter, filter only the background (1.21 onward)
  • F12: toggle between stretch-to-fit or keep screen ratio. It works from the character select screen onwards. External menus are only in stretch-to-fit. (1.26 onward)
  • Enter: Unpauses the game No longer as of 1.07
  • Alt + Enter: Toggles Fullscreen
  • Alt+ F4: Closes the game

Playable Characters

Click On Each Character to know more:

    SONIC THE HEDGEHOG

The main character of the series, Sonic is a very versatile character, but will require time to fully master. His Insta Shield ability allows him to increase his attack range, deflect most projectiles and regain air control.

He is also able to harness the full power of the elemental shields gaining different attacks according to the shield held.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A, B or C
  • Peel Out = Up (Held) + A, B or C
  • Insta Shield = (No shield or Blue shield) A, B or C while midair.
  • Fire Dash = (Fire Shield) A, B or C while midair. Can break weak walls.
  • Double Jump = (Electric Shield) A, B or C while midair.
  • Ground Bounce = (Bubble Shield) A, B or C while midair.
  • Homing Attack = (Golden Shield) A, B or C while midair, can be repeatedly used. A short air dash will be used if no target is available.

    MILES "TAILS" PROWER

Sonic's best friend and companion of countless adventures, Tails follows and supports Sonic whenever possible. His twin tails allow him to fly and his ability to swim allows him unparalleled vertical movement but leaves him open to enemy attacks.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A, B or C
  • Fly = A, B or C while midair press repeatedly to increase altitude. The spinning tails can be used to damage enemies. Use Down + A, B or C to cancel.
  • Swim = A, B or C while jumping underwater. Press repeatedly to swim upward.

    KNUCKLES THE ECHIDNA

The last Echidna, guardian of Angel Island and the Master Emerald, Knuckles' incredible strength allows him to break through any barrier with ease. With his spiked fists that allow him to climb on walls and his gliding skill combined, he is able to access paths no one else can.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A, B or C
  • Glide = A, B or C (Held) while midair
  • Climb = A, B or C against a wall or landing on it while gliding
  • Wall Breaker = Passive ability. Any breakable wall is destroyed on touch.

    ??? ????

A character from another time, summoned by the Flickies to save their island. While her abilities may be limited compared to the other characters, she will prove everyone her turn has arrived.

Abilities and Controls

  • Jump = A, or C
  • Dash = Down (Held) + A or C
  • Hammer Attack = B, press again for a second swing and a step forward. Can break weak walls.
  • Hammer Jump = Down (Held) + B
  • Hammer Spin = B while midair, press again to keep spinning. Can break weak walls.
  • Hammer Drop = Down + B while midair. Can break weak walls.

    ?????? ??? ????????

A character from another time, summoned by the Flickies to save their island. Born to be the ultimate life form, his extended array of abilities can make short work of any enemy.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A or C
  • Homing Attack = A, B or C while midair, can be repeatedly used. A short air dash will be used if no
  • target is available.
  • Wall Latch = Air Dash against a wall
  • Boost = B (Held) as long as the boost bar isn't empty. Can break weak walls.
  • Ground Stomp = Down + B

    ???????? ??? ???????

A character from an unstable dimension, summoned by the Flickies to save their island. This blue blur will protect the world with his spiked fists. While not as strong as Knuckles is, he has a few more tricks under his sleeve.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A, B or C
  • Glide = A, B or C (Held) while midair
  • Climb = A, B or C against a wall or landing on it while gliding
  • Insta Shield = Up + A, B or C while midair
  • Ground Stomp = Down + A, B or C while midair or Down while gliding
  • Minor Wall Breaker = Passive ability. Weaker walls are destroyed on touch.

    ?????? ??? ????????

A character from an unstable dimension, summoned by the Flickies to save their island. This carefree guy runs as fast as his blood boils. He is renewed in his world for his incredible speed. His innate affinity to fire allows him to blaze through any obstacle, but his rashness might get him into trouble.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A, B or C
  • Peel Out = Up (Held) + A, B or C
  • Fire Dash = (No shield, Blue Shield or Fire Shield) A, B or C while midair. Can break weak walls.
  • Doesn't work under water.
  • Double Jump = (Electric Shield) A, B or C while midair.
  • Ground Bounce = (Bubble Shield) A, B or C while midair.
  • Homing Attack = (Golden Shield) A, B or C while midair, can be repeatedly used. A short air dash will be used if no target is available.

    ??????? ??? ???????

A character from an unstable dimension, summoned by the Flickies to save their island. The greatest treasure hunter of his dimension and a skilled mechanic, his psychic power allows him to move in the air and water like he is flying. Combined with his incredible strength, there is no place he can't reach.

Abilities and Controls

  • Spin Jump = A, B or C
  • Roll = Down while moving on the ground.
  • Spin Dash = Down (Held) + A, B or C
  • Fly = A, B or C while midair. Press repeatedly to increase altitude. Will fall if used for too long. Use Down + A, B or C to cancel.
  • Wall Breaker = Passive ability. Any breakable wall is destroyed on touch.

TROUBLESHOOTING

Sonic 3D in 2D has a few options that can be controlled by creating a windows shortcut and adding a command n the destination field of the shortcut's properties. Click on them to know more.

All commands listed below can be entered in the same shortcut, separated by space (EG: /MIS1 /OLDPAUSE).

Machine independant Speed (/MIS1)

Should you face heavy slowdowns in the game, try to run it using the "machine independant speed" option by following these steps:

1 - Make a windows shortcut to the exe of the game
2 - Go into the link properties and add the /MIS1 command in the destination field after the double quotes

it should look something like this:
"C:\BLAH BLAH BLAH\Sonic3D2d 1.xx.exe" /MIS1

3 - hit OK and start the game through that link.


Water effect compatibility (/LIGHTWATER)

As of version 1.08 should you discover that the water in game looks like a large dark wall, try to run the game through a shortcut with the command /LIGHTWATER


Re-Enable Fusion 2.5 OLD Pause System (/OLDPAUSE)

If you experience slowdowns after the new pause system has been released, try running the game through a shortcut using the command /OLDPAUSE this will re-enable Fusion's un-pause system. You will gain some FPS, but you'll be forced to UNPAUSE the game by pressing ENTER.


Re-Enable Genesis Style pause (start only) (/QUICKPAUSE)

If you want to use the classic Mega Drive/Genesis pause with no options, just use the /QUICKPAUSE command within a shortcut.


Re-Enable Breakable Wall Glitch (/SOTALOSESLIVES)

If you feel like you want to forcefully trigger a patched bug discovered by the Speedrunners of the Sonic 3D in 2D tournament, you can do so by enabling this command.

StatusReleased
Release date May 26, 2020
Rating
Rated 4.5 out of 5 stars
(97 total ratings)
AuthorSotaknuck
GenrePlatformer
Made withAudacity, Clickteam Fusion
Tags16-bit, 2D, challenging, Difficult, Fangame, Pixel Art, Retro, Singleplayer, sonic, Sprites
Average sessionA few hours
LanguagesEnglish
InputsKeyboard, Xbox controller, Joystick

Download

Download
S3D2d-1.34 21-01-24.zip 67 MB
Download
S3D2d Saturn DLC.zip 77 MB

Install instructions

Click On Each Platform for more details:

WINDOWS

Download and unpack the zip file in a directory of choice. The archive includes xinput1_3.dll ("Microsoft Common Controller API") required for the game to work and detect controllers.

If you're downloading a new version, you can open the zip and take the exe into the folder of your previous installation, or extract into the same path and overwrite everything. Both the savegame and control settings will carry over automatically.


LINUX

Special thanks to mindbender444 for a Linux Installer on Lutris:

Sonic 3D in 2D - Lutris Installer

Alternativelly you can follow his step by step guide:

  1. Download Wine version: lutris-5.7-x86_64
  2. set DXVK option off (otherwise would crash immediately after launch).
  3. Use winetricks to install vcrun6. (otherwise the game will crash after input setup)
  4. (optional) Set up a separate wineprefix to keep things clean.

The game works in either fullscreen or windowed mode, but it may crash after switching between full and window a few times during gameplay. Left screen with low resolution after crash. Configure -> System options -> Restore resolution on exit in Lutris settings made the original resolution return the next time it crashed. So, just be careful toggling between the screen modes.


MAC

Special thanks to AnArmyofAnts for the guide below!

First of all, you need to install Homebrew so you can easily install Wineskin Winery.

PART1 - Homebrew

If you have already installed Homebrew (if you don't remember, open the Terminal and type brew -v), skip these steps:

  1. Go to your Applications folder, go to Utilities and open the Terminal.
  2. Paste the code that appears at the Homebrew page and press enter.

PART2 - Wineskin

Now, we're going to install Wineskin. You can also skip these steps if you already installed Wineskin.

  1. After succesfully installing Homebrew, go to the this page, go to "How to Install" and copy the Homebrew code.
  2. Paste the code into the Terminal and press enter.
  3. If succesfull, Wineskin Winery will now appear in your apps.
  4. Next, open Wineskin Winery. If you get a popup saying that it is from an Unidentified Developer, click Cancel, then right click and click Open, instead.

PART3 - Installing 3D in 2D

  1. Open Wineskin and Install the newest engine (in this case, it should work out well with WS11WineCX21.1.0; if you already have this engine, skip this step.) by clicking the + sign next to where it says "New Engine(s) available!".
  2. After the engine installation, click said engine and click "Create New Blank Wrapper". Name the wrapper whatever you want to (would recommend you to name it Sonic 3D in 2D, seems like a good name tbh) and click Ok. Now the installation should begin
  3. When it finishes, it should tell you to "View Wrapper in Finder", click that. Now drag the new wrapper to any place you can remember where it is (the wineskin folder is kinda hard to access).
  4. Right click the wrapper and click "Show Package Contents". Then open the Wineskin app that appears in the folder.
  5. Now download .zip file of Sonic 3d in 2d and open it. At this point you can also download the Saturn DLC, unzip it and extract it in the same folder.
  6. Returning see a menu that says "Install Software", "Set Screen Options" and "Advanced". Click Install Software and go to "Copy a Folder Inside". Then go to where you have the unzipped folder and select it.
  7. You may get a prompt to select where the executable file is, so select "Sonic3D2d 1.xx.exe" where xx is the game's version
  8. Go to Advanced and click Winetricks and search "vcrun6". A part that says dll shows, open that and select both vcrun6 and vcrun6sp6. Then click Run.
  9. After installing the Winetricks, click Close and it should be done. Double click (or right-click Open) the Sonic 3D in 2D.app (which is the wrapper) and it should run fine.

What happens if I haven't installed the Saturn DLC but I've already installed the game!?

Well what you can do is right click the Sonic 3D in 2D.app and click Show Package Contents. Then open the drive_c folder and got to Program Files. Go to the S3D2d-1.xx xx-xx-xx folder (the date and version do not matter), unpack the zip and drag both the "Saturn" and the "Custom" folders into the Data\Soundtrack\ folder without overwriting the existing music. You will be able to set the tracks you prefer in the new "Music Option" menu that becomes available in game.


How to install the Saturn DLC:

Simply unpack the zip, and drag both the "Saturn" and the "Custom" folders into your Data\Soundtrack\ folder without overwriting the existing music. You will be able to set the tracks you prefer in the new "Music Option" menu that becomes available in game.

Development log

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Comments

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(-1)

who else got a virus warnin

(+2)

It happens all the time with almost all applications windows doesn't recognize.

it wasnt windows it was mcafee

(1 edit)

Same story, any unsigned exe is easily flagged as a virus just "because", unless its digitally signed or the AVs encountered it on enough machines long enough to stop considering it a virus.

Newer unsigned exe files will suffer this fate forever.
You may need to get into your security settings and set mcAfee, and probably also Windows, to let the game start.

sure great that this game counts as dangerous content on my pc

It does that with most applications it doesn't recognize. It's normal with fangames.

(3 edits)

Windows and many antiviruses began doing their work relatively bad. They flag any new exe that isn't signed by them as a virus. While I get the concept in general, it's still a flawed one that creates a sea of false positives.

I can't do much, other than state that it's 4 years and counting that this keeps happening. I have better things to do than tarnish my reputation with a virus on a game I poured years of work into.
Flag the file as a false positive, and allow it to run if you'd like to play the game.

why do i start with all the chaos emeralds

oh wait nvm

Panic Puppet was designed to not be hard, but to beat you up until you are in a coma and then when you wake up you will be paralyzed, deaf and blind

And I got an game over too, from a time over.

I'm going to try again tomorrow. Act 2 is deadly, can you give me tips on how to get to the last checkpoint without taking damage once?

got some tips:

1. hold rings no matter what till the boss, they may look high but it will run out fast in this long hellscape

2. preserve shields, shields allow you to be clumsy for 1 hit but still keep them as long as possible

3.  go slow and take time, there is slight bullshit hazard placement that can hit you so watch out

also when you get to the boss, the first part can instakill you even if super so watch out for that

Question, is there going to be an android port for this game ever or?

why did windows say that this app might put my pc at risk? 

(+1)

It does that with most applications it doesn't recognize. It's normal with fangames.

(1 edit)

how do i reset the controls? i connected by pro controller but it didnt work and now everything is mapped to the control stick

edit: nevermind i redownloaded and it worked

Right now, only the Saturn DLC is available for download, and I want the main game. Plz fix.

Are you sure? I can see both download buttons.

i think i have a new idea for an soundtrack in this game based on my other soundtrack package mods for this game (specially the extra tracks) i think to give a new fresh air to this game is to give exellent soundtrack to the stages and reuse the extra soundtracks except the super theme, that's will reuse the super theme from the anniversary tracks. this will be an redux for my other soundtrack packages, just wait and this will be magic!

Make The Game Playable on Browser Plz. Plz Respond Sotaknuck.

No promises...yet!

This looked like a fun fan game so i downloaded it and I am making a profile for the first time to express how i felt about it.

I really liked the concept of this game and the overall design. I really appreciate the DLC because i have personally always preferred the Saturn music over the MD music (I feel the opposite way about Ecco's music)

thats being said, I played up to the second Robotnik boss, dont think i will be playing anymore of this. I liked this game in concept but i did not enjoy the execution. I do not agree with design decision like having bosses take more than 3 hits or putting blatant dead ends in the level and having lots of back tracking in a sonic game.  I dont know why Robonik's hit box in the first level is so weird, and in the second boss it wasnt very clear what to do and not enough time is given to the player to figure that out before you die and lose all your lives, since you will probably have very few after what was a pretty frustrating 2nd level. 

I get the feeling that these levels are designed to accommodate all the playable characters but it just makes it feel like playing as sonic is the worst option.

The mini bosses are pretty well done however, it was a nice addition! I am curious about the rest of the game, i might go back to it but it's just to frustrating. Sorry.

Sonic isn't the worst option at all. He's a technical character more than the others. He is the most flexible and the hardest to master.

More than the other characters (safe for maybe Amy, as she's the hard mode in this game) he requires knowledge of the stage, which shield to keep and use at the right moment and the level design.
He is the one that rewards you the most at later replays: once you manage to get a hold of the right shield at the right time, you can even clear Knuckles routes.

Don't give up at the game for a couple of gameovers. Like the games of old, 3D2D has not been designed to be beaten on the first playthrough.

how do you unlock shadow

Get a good ending two times.

(-1)

So uh Did you add silver? The Hottest Hedgehog from Sonic 06’

(+1)

I cant think of a joke for this masterpiece... 

wow theres a DLC for a fangame thats unexpected



I've been playing this game since it came out and its new versions, but I still maintain that the special phases are the worst part of the game and a pain in the ass. As an idea, it could be like the special levels in "Murder of Sonic The Hedgehog".

give me ideas for new music package for this game, if you have any, comment down below. thanks.

Rocket knight adventures and sparkster package!

ok, i will do it now

for people that's have problems with milliseconds to fit an loop to the ost you want to play in-game for loops: the loopstart trigger for example: 70380 and the endloop trigger: 240073. this is just an example onto how you do it so if it helped you send a comment down below. thanks.

Everything went bad but I still love Sonic :D

Got stuck in Zone 2 though, Rusty Ruins

You have to use the spinners, and land on the two springs where you can see the sunset while spinning. Hold right and you'll leap above the chasm and reach the boss area.

Alternatively, if you know your way around the stage, you can cross the chasm on the platforms by spinning with the speed shoes active!

This game released as an open source would be great to learn from through Clickteam 2.5. 

Very cool gameplay. Almost identical to the commercial ones! Great job!!!

Thanks!

(+1)

Awesome game! Our German-language review can be found in our recorded livestream starting at 02:24:00. Subscription to our YouTube or Twitch channel is welcome. 🙂

the volcano valley act 2 boss is kicking my butt.
most of the games fine till there though i just don't see how you're supposed to beat that boss.
any tips?

The easiest way is to look for a Fire Shield. There's one near the start of the level if you stay in the middle hight of the lava falls, and a few others scattered through the level. With a fire shield he can't hurt you at all.

Without a fire shield, I suggest you to stay on the right side of the arena, wait for the fire to reach you then leap above it as you go to the left. Hit a pipe when you can. If you time it right, you should be able land a hit and have the fire dissipate before it can reach you on the other side.

Good luck!


i forgot to update i beat it like. 2 days later its fun,,,,,,,,,,

is there any way to reset the controls that doesn't require the inputs for up, down, or confirm?

enter the game folder and delete the "last" file inside Data\Profiles.

Next time you enter the game you will have to re-enter controls.

Thank thee

it says the data file is empty

Hi can you do widescreen pls?

Quick question? I've encountered some bugs like the final fight boss right arm twitching, game crashing when pausing. Some recommendations. Make final fight 2nd phase ring move slower, its hard for the human to see them lol. Fix hit box for panic puppet act1 boss 2nd phase. Overall the games is... ok

(+3)(-1)

Sotanuk please make a version for android, I'm looking all over the Internet for information about the version for android, but as you understand, I did not find it. I ask you, if it's not difficult, then make a version on the phones. I really want to play it on my phone🤗🙏

YEAH, PHOOONE, PHOOONE, PHOOOOOOOONE

(1 edit)

so i just installed the game and started playing but i had all the emeralds from the start. how can i get a fresh save?

(+1)

Keep playing.

new update planned for aikatsu! 3D in 2D soundtrack for sonic 3D in 2D:

this update will bring instrumental versions of those tracks with all loop point and everything intact, some fixes to certain loops and more updates to come!

aikatsu! 3D in 2D now available to download:https://kitty2135.itch.io/aikatsu-3d-in-2d

how to add dlc

Simply put all the "Saturn" and "Custom" folders into Data\Soundtrack\

(1 edit)

want to hear aikatsu songs while playing this game? now you CAN! aikatsu! 3D in 2D is now available to download: https://kitty2135.itch.io/aikatsu-3d-in-2d

hey sota i found this error with the collisions of those platforms while making an soundtrack for this game. it's in green grove zone act 1 if you want to check it: 

That doesn't happen when playing normally.

I'll have to spend some time to figure out where I forgot a layer check to reach that area on the wrong surface level.

i was playing normally as reaching this part, after this i habe to backtrack a lil bit if i wanted to proceed normally

I'll patch it soon. Thanks!

(2 edits)

a new aikatsu music pack for sonic 3D in 2D: coming soon

UPDATE:  it's now finished. i will publish tomorrow

UPDATE 2: it's now published to enjoy this package while playing this awesome fangame! enjoy! https://kitty2135.itch.io/aikatsu-3d-in-2d

I FINALLY FIXED THE STORY INTRO MUSIC FOR THIS PACKAGE! https://kitty2135.itch.io/rayman-3-soundtrack-for-sonic-3d-in-2d

it's me or the final boss 1st phase seems soo easy in final fight? because it cost me nothing than the starting lasers and then only hit hin 1 time and done, is that a glitch or something?

Indeed it is, thanks for reporting!

(2 edits) (+1)

Okay so a few issues:

  • Firstly, I was checking out Extra Menu, and my All Clear save was overwritten because I pressed a button. There was no warning for this. My save is gone. I had all the Emeralds. 
  • Secondly, the first Act 2 boss... Listen, if Eggman's exposed, his hurtbox should ALWAYS be active.  Jumping on the big exposed cockpit like every Sonic game EVER has trained me to do should not hurt me, especially if there's no obvious indication of his hurtbox being replaced by a hitbox. That is HOSTILE design.
  • Thirdly, the first half of The Final Fight... I'll be honest with you, dude, once you get the cycles down the only thing it really tests is patience. It's one of the few bosses I'm confident I could do ringless. Given the second half uses an entirely separate control scheme it feels like there should be a checkpoint of some kind afterwards so the player can have a chance to figure out what they're expected to do without having to sit through the first half again.
  • Fourthly, the i-frames are WAY shorter than any of the official titles, and while i did get used to it eventually, my instincts keep telling me to damage boost when it is very clearly impossible given the minimal i-frames provided. Intellectually I know the problem is probably with me but it FEELS like it's the game fault when I  die that way.

Peelout is amazing

If You had plans to port in Android in some tool Would You do it???

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