AGwaK4: Herbert's Island Adventure

And someone was nice enough to make a gameplay video:
http://www.youtube.com/watch?feature=player_embedded&v=xAye6WXIOIIBut Why!!I keep making these games! Nobody knows why.
Actually, I know why. They are relatively simple and serve as a great way to get into new frameworks, in my case Unity3D. So basically, this blends 3d models with 2d tiles. It's been done, it's just that *I* haven't done this yet. It was a great learning experience.
Let's Game!You're playing a pond hippo called Herbert. His house has been destroyed and horrible blob things are nibbling on his flowers. That does not make him happy, so Herb decides to investigate.
Herbert starts with a basic run and spin attack, but learns more stuff later on. His main goal is collecting bells and coins hidden all over the level and maybe beat a few bosses along the way.
The game has 2 endings and 2 secret levels in addition to the normal 9.
DownloadIt can be downloaded at
http://www.origamihero.com.
Direct Link (Windows):
http://www.origamihero.com/herbert.zipDirect Link (Mac OS X):
http://www.origamihero.com/herbert_mac.zipThis is a release candidate. There shouldn't be any game-breaking bugs left, but I may have missed a thing or two.
EDIT: I can't test the MAC version. Unity basically gives me a herbet.app folder, which I zipped and uploaded. Will this work like this?