I noticed on tfgamessite that the game is tagged with animal transformation, I was wondering how much animal tf content is in the game and also what sort of form does it take (i.e. anthro, feral, etc) ?

The second unlockable character has a Human -> Mouse (Anthro) TF which is the most obvious animal TF in the game. The first character's Hucow TF touched on some TF, but isn't as extreme.