nope

undead fish requires a very fresh sashimi, just take the fish to the top of the level while it is still at least 85% fresh. This is hard but doable :)

White hot is, top of the world, which is a tricky jump left from the well dweller then running all the way to the left across the top of the doors.

Fat pussy is getting stuck with the cat in the first level. pick up the fat cat in the sky, run left and jump to land on top of the time machine then walk left to fall down and get stuck.

see the comment I just typed in above this one :)