For people complaining they are having trouble moving around, do the tutorial. The only thing that bothers me is that flying monsters can go through the ground. I wouldnt even mind that if, say, fire could still hit them. I finished it without too much trouble.
Gave it 5/5 because it is great for what it is. It's a silly quick game, that has great responsiveness and awesome graphics. It's not that hard, but it takes a few tries to beat. Good quickie :)
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 "Hey Wizard!"){kind=icon}
 "Castle Crashing \"The Beard\""){kind=icon}