Shield Sheldon

Shield Sheldon (Shieldner Sheldon in Japan) was a shell Reploid rookie bodyguard. He failed in his job as bodyguard when Dr. Jim, a important person he was protecting, became a Maverick and was killed by Maverick Hunters. The Maverick Hunters also identified Sheldon as a Maverick just because he was created by Gate (who is famous for creating dangerous Reploids). He could not deal with this and decided to retire himself, believing that he is useless because he wasn't able to do his job. He was later ressurected by Gate to examine the Nightmare. Seeing this as a second chance and that he needs him, he tries to fulfill his duty as a bodyguard protecting Gate, even if that costs his life again.

He attacks throwing the shells on his arms at enemies, bouncing the shell through the screen (inside or outside of the shell), creating a copy of himself, creating a four way Guard Shell, and placing four shells in each side of the screen to run between them. He's weak against Metal Anchor and Rakukojin, being throw away when hit by them, but it's necessary to wait for him to be vulnerable first.