It feels a little empty...
From what I can tell, the gameplay never changes. Of course, since shop items are a bit too expensive and your character doesn't have much HP, I haven't seen more than a quarter of the levels yet... :/ It seems like it should move along a little faster. It stays almost the same from level to level, with the addition of a new bat type every so often. It would be great with a little more gold, a little more activity (Maybe there could be something to jump over, like rats?), and a few bosses. Good graphics, by the way. :) 5/10, 3/5. Pretty fun for a first submission.