Dark Meta Knight

Dark Meta Knight is the Mirror World Copy of the original meta Knight and of course bears a striking resemblance to him. The main differnce between the two is the coloration. Dark meta Knight is a more aggressive fighter compared to the main Meta Knight.

Mecha Sonic Saga
Dark meta Knight first appears in the Mirror World Arc of the Mecha Sonic Saga. While Meta Knight was meditating, he experiences sudden shock and sensed that Marx was hiding somewhere in the Mirror World. Meta Knight used a special technique to transport himself there. However, once he arrived here, Meta Knight was attacked by both Dark Meta Knight and Dark Dedede. Once they outmatched him, they brought Meta Knight to Marx, who began to torture him with his attacks. With help from Professor E. Gadd, he builds a machine that can transport the heroes to any other dimension, no matter how far it is. They teleport to the Mirror World and they themselves are ambushed by Dark Meta Knight and Dark Dedede, though the heroes were victorious in this battle with help from Shadow Kirby.