Characters (Nintendo)

Leonardo

Raphael

Donatello

Michelangelo

April O'Neil

Casey Jones

Hothead

Shredder

Characters (Super Nintendo)

Leonardo

Raphael

Donatello

April O'Neil

Shredder

Rat King

Armageddon 

Aska

Chrome Dome

Wingnut

War

Characters (Sega Genesis)

Leonardo

Raphael

Donatello

Michelangelo

Ray Fillet

Sisyphus