If u just keep clicking the left mouse button in the middle of the plank it pretty much completes the level. this works for quite a long time in the game.
Not a bad idea for a game though.
Gotta admit, a bit on the short side but a good game nonetheless. I'd love to see a longer version, I'd definately be hooked.
To be honest, I was quite scepticle of how the "scary" atmosphere would be created, but heck, you had me bricking it in the dark with the sound turned right up =P well done.