Latter mushroom dance floor bugs?

[songshade]

If you go to the room with Charlie (Penguinz) there is a white mushroom with a yellow head named Yellow foot, but there is another mushroom somewhere named yellow foot with the same dialogue, but he actually has one foot and jumps unlike this one.

Also some mushrooms seem to have problems with layering. If you go in front of them, their shadow overrides the player, which makes no sense. It happens to Jerry; Muchroom; Jack Stanford; Purpul Murphy; Munchgi

A pink panther looking mushroom at the bottom right has no dialogue option (maybe its intentional?)