Sonic the Hedgehog: ReOne
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Sonic the Hedgehog: ReOne



After the events of Sonic Mania Plus, Eggman saw that Sonic and his pals destroyed his greatest inventions. With the Hard-Boiled Heavies destroyed, he is hopeless and devastated. Feeling agitated, Eggman decides to look through his old inventions until he stumbled across his greatest invention: time travel. Seeing that again gave him a brilliant plan, altering the future. He decided to time travel back to 1990, where Sonic didn’t make his adventure a year later, in South Island, and invade the place and alter the future without Sonic realizing. The next day, when Sonic was taking a stroll around South Island, he saw South Island turned into the Eggman Empire. With Sonic confused about why he destroyed South Island that quick, he went back to Tails who was fixing his tornado. Tails told Sonic that Eggman went to the past and altered the future before you realized. With Sonic annoyed about this, he tells Tails to see if he can go back to 1990 where Eggman time-traveled to. Tails added a chip that can send his tornado to any time of the year if it hits 88 mph. So with the settings to 1990, Tails flies the tornado across the sea, hitting 88 mph. With a flash, they went back into 1990 where Eggman Empire isn’t complete but there are badniks scattered across the island. Tails told Sonic that he needs to fix up his tornado as it is malfunctioning which means Sonic must to go back to Scrap Brain and defeat Eggman, once again.


As Sonic went into South Island again, he still remembered his well know abilities. And these abilities are selectable if you select options in the title screen. Here are the choices:

If you select Sonic 3 in the control styles, you would get the spindash and the insta shield

If you select Sonic CD in the control styles, you would get the CD spindash and peelout

If you turn all controls on, you would get the Sonic 3 controls but with the peelout

You can toggle the extended camera if you would like to have that

There are some features that enable such as the Sonic CD roll jump, the air roll from Sonic Triple Trouble and the slow ducking from Sonic and Knuckles no matter what you select.

We do the bosses as the same as in Sonic 1 but with a pinch mode. You think taking 8 hits would get him down? Nope! He’ll fool you and make you say sorry as he decided to plan some tricks to stop you from your path. Make sure you know what to do.


Jump, bounce and fall into these stages as you desperately try to get back the emerald. It’s all about platforming. You just jump for block to block and think about where you move. Gain those 4 emeralds (for this demo, unfourtately. There wasn’t enough time) to transform into Super Sonic where you can fly across the zones without trouble. So how do you get into those stages you ask? Grab 50 rings and go to the lamppost and into the stars you go into a quest to seek those emeralds.


​​​​​​There are 3 playable zones for you to try out with different palettes every time you move from acts and zones. After you finish them, you’re taken back to the title screen. Everything you saw in videos and images from the past few months is playable here. There are some level design issues due to time constrants but at least they are all playable!

I hope you enjoy this hack as much as I was when working on it!


Level designs: DeltaWooloo with some help from Dj. Joker27

Music composers: Dj. Joker27, RuthlesstheHooman, TheInvisibleSun and JoenickROS, LackofTrack

Palette designers: DeltaWooloo, RuthlesstheHooman, maple_t and KCEXE

Coders: DeltaWoolooand RandomName

Title Screen logo made by me

People who helped me along the way: Iso Kilo, AUORA_FIELDS (Natsumi), MarkeyJester, Samey, ProjectFM, Tanman Tanner, Trickster, Inferno, RuthlesstheHooman, nineko, KCEXE and Dark Lips

Spindash guide by Lightning, Puto, shobiz, Mecury

Shield attract and bug fixes from Mecury’s ReadySonic

Peelout and CD spindash by LuigiXHero and Mecury

Sonic CD roll jump and slow ducking, title screen centering and fix Sonic 1 debug by Iso Kilo

Fade to white routine and removing water surface object by ProjectFM

Air roll by Inferno

Sonic 2 spring object, coconuts and stars by RandomName

Correcting PAL music by Crash

Starposts by Shooter

Sonic 3 and CD SFX: KCEXE

Route 113 SMPS by ProjectFM

Snake Man SMPS by ValleyBell

Sonic Heroes Special Stage 2 by S_T_D

A few buh fixes and Nemesis and Kosinski decompression by vladikcomper

Just Have Fun!

How to Play

Player 1 (Default Mapping)
Inside The Game Your Keyboard
A, B, C Button =[J],[K],[L]

How to Save: Hover over the game canvas. A save button will appear at the top of the game screen. When you click "Save" button, the save code (spot) will be saved onto your browser's storage system automatically.

How to Load: Come back anytime in the future, simply click "Load" to resume from your latest save spot. (Assuming you did not clear your browser' data.

CAUTION:: Browser's private mode WILL NOT retain your save state, because save state is deleted once the browser is closed, so don't use private mode if you want to use the save state.

Recommended Browser: Chrome

Sonic the Hedgehog ReOne is a online Sonic Game you can play for free in full screen at KBH Games. Play Sonic the Hedgehog ReOne using a online Sega emulator. Easily play Sonic the Hedgehog ReOne on the web browser without downloading. Hope the game will bring a little joy into your daily life.