Sonic the Hedgehog
The playable hero who travels to Little Planet to stop Dr. Robotnik and save Amy.
Documented for this version
D-pad Left/Right | Move Sonic |
|---|---|
D-pad Down | Crouch or look downward |
D-pad Up | Look upward |
A | Jump; press while crouching to begin a Spin Dash |
B | Jump; press while crouching to begin a Spin Dash |
C | Jump; press while crouching to begin a Spin Dash |
Start | Pause the game |
D-pad DownA | Charge and release a Spin Dash B or C can be used in place of A. |
|---|---|
D-pad DownB | Charge and release a Spin Dash A or C can be used in place of B. |
D-pad DownC | Charge and release a Spin Dash A or B can be used in place of C. |
The three face buttons perform the same jump function in the standard Sega CD control scheme.
How it plays
The game uses a side-view perspective across seven zones, each divided into three acts, plus special stages and a final confrontation. Sonic runs, jumps, rolls, collects Rings, defeats enemies, and searches for routes through obstacles and loops.
Time-travel signs allow Sonic to move between eras after building enough speed. Destroying the robot generator in an act creates a good future for that act. Collecting all seven Time Stones through the special stages also enables the best ending. A save system records progress between sessions.
Plan your run
Learn the layout of each act before prioritizing speed. Explore alternate paths in the past, where robot generators and useful routes may be easier to reach.
Meet the cast
The playable hero who travels to Little Planet to stop Dr. Robotnik and save Amy.
The main antagonist, who occupies Little Planet and uses it to build Metal Sonic.
A young hedgehog captured by Dr. Robotnik and rescued by Sonic.
Robotnik’s powerful robotic counterpart to Sonic and the rival in the Stardust Speedway race.
Documented inputs
Documented unlockCollect all seven Time Stones in the special stages to obtain the best ending and remove the need to destroy every robot generator.
Documented unlockDestroy the robot generator in each act to create that act’s good future.
Before you begin
Use time-travel signs only after building enough running speed; stopping normally cancels the attempt.
The past often contains exploration routes, while the future reflects the results of your actions.
Amy’s presence can make some hazards more dangerous, so keep moving when she follows Sonic.
Sonic CD is a platform action game developed and published by Sega for the Sega CD. Sonic races across Little Planet to stop Dr. Robotnik, rescue Amy Rose, and prevent the creation of Metal Sonic. Its defining feature is time travel: each stage contains past, present, bad-future, and good-future versions that can be reached by maintaining speed near special signs. The game combines traditional side-scrolling platforming with exploration, momentum-based movement, and animated story sequences. It was widely praised for its audiovisual presentation, inventive time mechanics, and polished level design, although its regional soundtrack differences remain a frequent subject of discussion.
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