Mecha Knuckles
Mecha Knuckles is the rebuilt Metal Knuckles, he first appears Organic looking as he looks the same as Knuckles but Pink with yellow gloves, he can shoot Missiles from his mouth
Fake Guardian of Angel island[]
Mecha Knuckles was rebuilt by Eggman to pretend to be Knuckles and Ambush and possibly defeat Sonic, even after a long Battle, he was defeated by Sonic.