First of all: I like the visuals. The game looks great.
Secondly: Nice idea for the theme, having a character from a game play a level from a different game.
The controls were a bit tough though. I'm not sure if I missed anything but it seems like you can't jump very high. And on my keyboard layout Z and X are not next do each other (for me Z is next to T, where Y would be in your case, I'd image), which didn't make it any easier to play.