Sonic 1 for MegaDrive/Genesis Name: Debug Code Where: title screen Previous codes needed: none Buttons: UP, C, DOWN, C, LEFT, C, RIGHT, HOLD A, START Indication of successfulness: chime Extras: During game, B is to change into an object, A is to change the object, and C is to paste the object Name: Stage Select Code Where: title screen Previous codes needed: none Buttons: UP, DOWN, LEFT, RIGHT, HOLD A, START Indication of successfulness: chime Extras: none Sonic 2 for MegaDrive/Genesis Name: Debug Where: Level Select Screen Previous codes needed: Yes, Level Select Code (See Below) Buttons: Play 1, 9, 9, 2, 1, 1, 2, and then 4. Highlight the level that you want to go to and then press Start and A at the same time. Indication of successfulness: Dunno Extras: Yes, In the game Press B to be a sprite, C to place the sprite, and A to change the sprite. Name: Be Ashura, Sonics Brother Where: The first waterfall in Emerald Hill Zone. Previous codes needed: Yes, Debug (see above) Buttons: First goto the first waterfall and press B, then press A until you see yourself blank (these are waterfalls). Press C ALLOT! Then Run to your right. (you can do this on act 2 aswell) Indication of successfulness: Turn into Ashura! Extras: No Name: Level Select Where: Options screen then Sound tests. Previous codes needed: No Buttons: On sound test play 19, 65, 09, and then 17. Press Start, Hold down A and go into a regular one player game. Indication of successfulness: The Genesis will Reset Extras: No Name: Super Sonic Where: Options screen then Sound tests. (I think) Previous codes needed: No Buttons: On sound test play 4, 1, 2, and then 6. Press Start, and when in game if i can remember rightly if ya get over 50 rings you turn into SS. Indication of successfulness: Dunno Extras: No Sonic 3 for MegaDrive/Genesis Name: Debug Where: Level Select Screen Previous codes needed: Yes, Level Select Code (See Below) Buttons: At the level select screen hold A and START. Indication of successfulness: Dunno Extras: Yes, In the game Press B to bring up de-bug menu, C to place the sprite, and A to change the sprite. Name: Level select Where: On the Quick animation before the Title screen Previous codes needed: Nope Buttons: Quickly press UP, UP, DOWN, DOWN, UP, UP, UP, UP. Indication of successfulness: Chime Extras: Dunno. Sonic and Knuckles for MegaDrive/Genesis Name: Level Select Where: The Angle Island, at the swinging vines. Previous codes needed: No, dont think so. Buttons: While swinging on the vine press left, left, left, right, right, right, up, up, up. Indication of successfulness: Chime Lastly: Pause the game and press A to restart the game. At the title screen you should be able to go past the competition selection and if you can there will be a sound test selection where you can pick levels. Sonic 3D Blast (MegaDrive/Genesis) Name: Level Select Where: Title Screen. Previous codes needed: No, dont think so. Buttons: BARACUDA (B, A, RIGHT, A, C, UP, DOWN, A) Indication of successfulness: Not sure Please email me if you have any game cheats to contribute.