Skullmonkeys, too, come up with bizarre ideas to use their heads.

The Head Shooters are smaller than most other Skullmonkeys, but they can pop their heads off and make them float around for a little while, then grow a new one (so Popcorn Skulls are probably homeless Head Shooter heads).

It can be a bit tricky to pass them without one of their heads biting you, but if you use THEIR heads (as a stepladder-sort-of) it should be no problem.

Where to find those fellas? Level Monkey Shrines.