The title gave me expectations that were not met.
These are my criticisms:
1. The title made me think that you could turn into animals or turns things into animals that fight for you on their own, not just throw a bunch of animals at things and that's it. This ultimately made the game more closely related to generic shooters (which this pretty much is) rather than help it stand out.
2. The boss was ridiculously easy. Just spamming attack when he landed once was all I had to do.
3. Being 2D, this probably could have been done in Flash so that people who normally use Google Chrome or other browsers that don't support Unity aren't inconvenienced (though I have no idea why Chrome doesn't support Unity anymore... Unity is cool).
I suppose the game was going in the right direction, but could have been a lot better if more was put into it.