Metal Sonic in Sonic the Hedgehog 2. fully replacing Sonic into a playable Metal Sonic, Along with Bugfixes and 3 different playstyles for Metal Sonic.

• No-Intro Name: Sonic The Hedgehog 2 (World) (Rev A)
• (No-Intro version 20130710-102701)
• ROM/File SHA-1: 8BCA5DCEF1AF3E00098666FD892DC1C2A76333F9
• Patched ROM/File SHA-1: 87C68B391E9DDB27B18595501D4C2EDAFC077283