Amy Rose in Sonic the Hedgehog
From Sonic Retro
Amy Rose in Sonic the Hedgehog (aka Amy in Sonic 1) is a character swap hack of the game Sonic the Hedgehog 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 MarkeyJester, Aquaslash, Selbi and Hayate. Amy Rose in Sonic the Hedgehog 2 and Sonic 3 and Amy Rose are sequels to this hack.
This character hack is the most complete, with special moves and fully playable game.
Amy's abilities mirror those she utilized in Sonic Advance. She is slower than Sonic and can't use spin attacks, however has a number of abilities (mostly using her Piko Piko Hammer) to gain manueverability and access areas Sonic had difficulty reaching: