if anyone can tell me how to get pass that one door on level three I'd be very grateful. There is no door opener for it and the next checkpoint is behind it!

HINT: Climb ALL, I repeat, ALL walls. The door release for that particular door is at the top of a difficult wall climb. You have to go back and forth between the alternating walls. Anymore help needed? That's all I got. The boss for the 3rd level is Pyro, And I can't figure out how to beat him. You get the dash upgrade in this level so keep your eyes open and climb ALL WALLS!!!!!!!!

i beat pyro..... you climb walls on side when the flames come... when he throws the ring at you jump off the wall or dodge.................................