I guarantee that this will be the hardest side-scroller game you will ever play, in your life. Try it out, and let me know how far you get and such. I can answer questions about any level, not past the 4th screen Try to do it before consulting a guide on Youtube. IWBTG! - Downloads!
He isn't kidding. This game is impossible. However, it's not fun-impossible. It's holy-crap-that-was-cheap impossible. It just isn't a fun game.