Little Skull Mouser
From the Super Mario Wiki
A Little Skull Mouser is a creature a lot like a Little Mouser, but has the skull of an unknown creature on its head. It is known to jump around aimlessly. It is found only in Super Mario World 2: Yoshi's Island. Jumping on theirs heads will destroy the skull and revert them back to normal Little Mousers. Unlike the Mousers, they don't seem interesed in stealing a Yoshi Egg. Until their skulls are destroyed. Suprisingly, a ground pound will not immediately kill them.


