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Play Sonic CD (Beta 1 · Japan edition · English) Online
CD Sonic The Hedgehog (Japan) (Beta 1)
Play Sonic CD online. Race through time to save Little Planet from Dr. Robotnik.
Browser play
Sega CD / Mega-CD — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / C | S / X / Z |
| X / Y / Z | Q / A / E |
| START / MODE | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Sonic CD
Quick start
When the build offers control, practise left/right movement and spin jumps, collecting rings before approaching enemies. Follow this build’s opening sequence rather than a retail stage-order guide.
Controls
D-pad: move, look up or crouch. A/B/C: spin jump. Down + jump: charge the Spin Dash, then release Down. Start: pause.
Sonic CD — About this game
This development build preserves an unfinished version of the game; its content and presentation can differ from the retail release. Sonic explores branching stages on Little Planet, where signposts open routes into the past or future. Keeping his speed after touching a sign triggers a time warp, while searching the past for robot generators changes the future of that stage. Rings protect Sonic from a hit, and finishing an act with enough rings opens a special-stage opportunity. The adventure mixes speedy runs with deliberate exploration, a Metal Sonic rivalry and a rescue mission for Amy.
Sonic CD Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · segaCD
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.