It's a series of references of the Lego Batman movie.

It's the Embodiment Of The Wicked AU as superheroes and it makes me think of DC. The AU is made because I wanted to see how the cast works as superheroes. 

Denis' power was going to be 'invulnerability' but I changed it to 'Feline Physiology'

Invulnerability is being unable to feel pain (I think). Feline Physiology is having the traits of a cat

I won't apologize for making Denis muscular.

Will's power is called 'Feral Mind'. He becomes angry at his own will and it heightens his speed and strength. Not like superman but as fast as a cat and as strong as a wrestler, just stronger and faster than a normal person but not at a ridiculous level.