Good, But too Difficult.
The moving scripts are good, but the saw moves randomly and you can't help but get hit by it. It's almost impossible not to get hit by it, like trial and error. Anyways, Good Job Dude.
Not too bad!
Not great either, but I found myself pressing onward all the way up to the game's easily-reached ending. There's a LOT that you could do with this, and I'd start with the lone enemy, who's far too difficult to avoid or predict for its own good. Finding some other sort of enemy for your smiley-faced hero to avoid would do enough to give you an added point or two, but adding some variety to the way the mazes and backgrounds look would also go a long way. Also, maybe make the mazes a little smaller? Or make more than one solution, because it's way too easy to go far out of your way and find nothing but dead ends.
As for what works, the basic game idea, while not necessarily new, still works rather well, and the controls tend to be responsive enough, though not quite perfect. Very solid core that's enjoyable enough to be worth sitting through if you're bored, but that doesn't negate the game's flaws.
simple but very atticting!