Play As Metal Sonic | Updated 03 Apr |
| Collect the five Sonic Tokens on the Resort Island course and finish in the top three positions. Then, beat Mecha Sonic in the bonus race. Note: This character can float in water for a limited amount of time. |
Play As Metal Tails | Updated 03 Apr |
| Collect the five Sonic Tokens on the Radical City course and finish in the top three positions. Then, beat Mecha Tails in the bonus race. Note: This character can float in water for a limited amount of time. |
Play As Egg Robo | Updated 03 Apr |
| Collect the five Sonic Tokens on the Regal Ruin course and finish in the top three positions. Then, beat Egg Robo in the bonus race. |
Play As Metal Knuckles | Updated 03 Apr |
| Collect the five Sonic Tokens on the Reactive Factory course and finish in the top three positions. Then, beat Mecha Knuckles in the bonus race. Note: This character can float in water for a limited amount of time. |
Play As Dr. Robotnik | Updated 03 Apr |
| Finish in first place in the in the Radiant Emerald course. |
Play As Super Sonic | Updated 03 Apr |
| Collect all seven emeralds from the first four courses. Highlight Sonic on the character select screen and press Up or Down. |
Play As Same Character | Updated 03 Apr |
| Have player one select any character. Highlight the same character and hold X + Y + Z on controller two. Note: This code is also valid when selected bonus characters. Alternatively, highlight the same character, then hold X and press A on both controllers. |
Radiant Emerald Course | Updated 03 Apr |
| Finish in first place in each of the first four courses. Note: Play this course as Super Sonic to hear a slightly different background song. |
All Emeralds | Updated 03 Apr |
| Hold Left and remain motionless until two laps are completed by another racer. |
Alternate Soundtrack | Updated 03 Apr |
| Race the Radiant Emerald course as Super Sonic for an extended version of the title song. |
Control Title Screen Logo | Updated 03 Apr |
| Use the D-pad at the title screen to rotate the "R". Press B to make the "R" metallic in appearance. Press X or Y to shade the "R". Press A to return the "R" to its original appearance. |
Change Menu Pictures | Updated 03 Apr |
| Press L or R when in a menu to change the picture displayed above the selection bar. |
Full Screen Pause | Updated 03 Apr |
| Pause game play and press X + Y + Z. |
Skip End Credits | Updated 03 Apr |
| Hold A + B + C and press Start. |
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