Very nice, I really enjoy this one!
Some feedback...
- boundleft/boundright should be the same size, otherwise one player gets a advantage. It´s not so bad on this stage, cause it´s so wide.
- I don´t like Deadpools movement on the Zombie T-Rex, it´s too much
- Headpool is barely noticeable
- nitpick... Dr. Betty should wear glases XD Maybe you could recolour her pants & boots
Other then that, really awesome!