As I've noted, in addition to being able to change the yellow energy flash of super-strength, you can also choose from an entirely different set of super-strength animations - more straight-line punching rather than the HULK SMASH punches we have now. And a ground punch instead of foot stomp - that sorta thing. Some of the new super-strength alternate punches are really awesomely cool ... I like them better than the default set.
Martial Arts has some alternate animations as well.
-- Acyl
Martial Arts has some alternate animations as well.
-- Acyl