Fun!
It's a simple concept and it works really well. The graphics are simple, but they work quite well. I'm not big on the scream of terror every time the character comes out of hiding, but maybe that's just my personal taste. The only 2 things that I can say that I think could add to this.
The first would be different game modes. Maybe modes with different lengths of time with different score boards. Maybe minor tweaks to the gameplay dynamic like having a mode where burning more people between coming out of hiding and going back gives you a combo bonus.
The second would be that I think you should run some of your text through a spellchecking program before putting it into the game. It's a minor issue, but it kind of detracts from a otherwise great game.