Great atmosphere, and really cool idea! You took what the most obvious way to see the theme ("when you die, you retry with more abilities") but added that very original twist of needing to find new ways to die to advance. The graphics were good and the sound design has some nice attention to it, so great job =).
Using "alt" in a game was a bit strange, but other than that, the controls are nice and feel good. Congratulations, that is a solid entry =)