It stands to testament that you really could replace the HTF characters with anything else and nothing would change about the game. Which, in my opinion, you should because this game really doesn't have anything to do with the ultra-gory, sadistic, post-ironic world of Happy Tree Friends. Like, at all. A HTF anything without gore is sort of tantamount to having a Dexter's Lab game without Science, for example.
All in all, this game is a solid effort. But it's amateurish, to be frankly honest -- I have no doubt you will improve with any future games you produce, work on your theming and focus!" Good luck and have fun!
Play Calm HTF