Being a big fan of Isaac, I definitely couldn't resist the charm of this game, too. At the moment there doesn't seem to be much threat from enemies and you can easily outsmart them, but damn that's a great submission! My favorite part is that you're free to choose 0, 1, 2 or all 3 moves in the same turn. It truly gives weight to players' decisions. I could exploit this by skipping infinite turns to get hearts, though. And it would be great if you could move freely when there are no more enemies on the screen. ;)