Fantastic Four
Go to character select and pick The Thing,Mr.Fantastic,The Human Torch,and Invisible Woman. You will get 20 health for everyone killed.
Femme Fetale
During character select, choose: Invisible woman, Spider woman, Storm and Elektra. ( You can also use Mrs.Marvel )
Forces of Nature
During Character Select, choose Thor, Iceman, Flaming Torch, and Storm.
