The levels can be done in any order, so I'll start upper left and go clockwise. This is the easiest level, and a good one to start with.

I usually get in front of this monster and if you're quick enough you can kill it before it hits you.

After a hairy ride down a shaft, an armadillo like enemy who rolls into a ball and bounces trouble your way.

When entering the final rooms, the bosses appear as their human selves.

I thought, how easy, people bosses! But they quickly mutate into....this...thing. Sporting the earth armor here, aim for the top gem and dodge in the little room you have.