Well produced game, lots of potential
First of all, its a great game, i love a good side-scroller. The music could have been more suiting/less repetitive. There were a few things that bothered me:
1.) Screen-scrolling when moving to the left. When the character was moving to the left, the character remained maybe 25% from the left side of the screen. The screen view should be adjusted if moving left is a common element, as with this game.
2.) Moving on to the next level. I found myself still holding a button from the previous level when i was thrown into the new level. Quite frustrating when the first thing you do in a level is inadvertantly die.
Otherwise a very enjoyable game!