Why doesn't this level work? (large image warning)

[Lessinath]

I am looking forward to playing this nightmare of a level.

It's actually pretty easy. The only part where you might get legitimately screwed is some low-end lucky timing involving the four trapped teeth and walking out the door as a glider or fireball shows up.

Some levels later in this set are WAY harder, and actually, the level before it is harder too.

And this is only level 3.