I think this game would be better if there were:
-Sound effects
-Time pressure, or moving enemies of some sort; The lack of anything like that makes this feel slow and boring.

I did like the way the walls were implemented; instead of solid things that block your path, you must avoid accidently bumping into them, or intentionally sacrifice some health to go through them.

This game is alright, although it is a bit short and boring only because, well its shortness and odd execution.

simple but pretty cool!