Sonic 3 and Amy Rose is a fan-made hack of the game Sonic 3 & Knuckles for the Sega Mega Drive/Genesis, with character Amy Rose as playable character in place of Sonic the Hedgehog. The games' sprites (modified from Sonic CD) use Amy's initial design prior to Sonic Adventure. The game was modified by Sonic Retro member E-122-Psi with additional programming and coding by other members including Tiddles, and additional sprite work by ChelseaCatGirl and MotorRoach.