Sonic Primo
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Sonic Primo


Check out this super cool Sonic fan game! Get ready for a super speedy adventure with Sonic Primo and his buddy Tails. It’s like stepping into one of the most awesome classic games ever!

Enjoy two zones: Crimson City Zone and Trap Temples Zone.

Uh-oh, the mean Eggman took all of Sonic’s money! Now Sonic’s on a mission to get it all back. Can you help him dodge all the tricky obstacles and beat those baddies? It’s a wild experience, and you’ll have a blast exploring the world, showing off your courage, and having the best time ever!


  • Shield DPLC code and Sonic 3 Object System in Sonic 2 by lavagaming1
  • Sonic & Tails Sprites by CartoonAnimates22
  • Devon for smooth rings and some bugfixes
  • Linkin Park for Breaking The Habit
  • Flamewing for SMPS2ASM
  • S3K ring manager from sonic retro guide, with attracted rings, with some porting help by lavagaming1
  • Sonic 3 Drum samples
  • Some S1 and S3K level art
  • Devon for some help with the different music per act thing
  • RobiWanKenobi for everything else
  • A entry for Sonic 2023 hacking contest. View Entry here

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