Red Koopa

Red Koopas are unused enemies in Super Mario 64 and Super Mario 64 DS. In the original Super Mario 64, there is an early shell model that is colored red with blue bottoms. In Super Mario 64 DS, there is an unused Red Koopa enemy with a red shell. It runs towards the player instead of away, though it does not do damage, likely due to being unfinished. When knocked out of the shell, it will chase after it. The red shell cannot be ridden or picked up, but can be kicked in one direction and it will go forward in that direction. It can kill any enemies it touches, and when it hits a wall, it disappears with a puff of smoke being created afterwards. If Yoshi eats the shell, he will be able to spit fire, similarly to Super Mario World.