I wish I'd had a game like this when I was a kid; I probably would have sunk countless hours into it. Regarding my experience playing it: Sometimes enemies get stuck when they're too close to trees. There are some assassins... I guess it was a dungeon (though I couldn't enter any buildings) that appears cut off. And perhaps it would be good to balance the difficulty a bit more to make it more challenging, because by the time I reach level 3, just upgrading the shuriken, I practically don't even have to move.