This game is rather fun however I've become addicted to The Killing Moon which causes problems to the point where there will be hundreds of skeletons on the field and the game slows to a stop before firefox stops responding and I have to go to system processes to forcibly close it ... good times!
Good game, semi-challenging though the music is a bit mind numbing after a while. MIGHT be worth it as a 99 cent game but it's just not worth the $15. Also not sure how people get stuck at Stop and Reflect, think stairs and then upside down stairs.
Doesn't take that much time, I only got hit 3 times in the entire game on my first try and none of those were trying to get through the pathway on the one boss. Fantastic game. :P