I'm sorry but there is not enough.
The concept is.. Not very well designed, try expanding upon this, add a storyline, add alternate ways, make more then ONE room, make alternate levels to get into, you just need to add MOAR.
The graphics could do better, make the stickman a bit thicker, just a suggestion and please make the deaths more interesting, they're very plain and boring.
Bad attempt, can do better. Please try again.