[Kharn The Complainer]

Welcome aboard!
What do you mean with: "I love to mix it with Digimon, Teen Titans, Pokemon, Kingdom Hearts, Happy Tree Friends, Mario, Sonic, and My Little Pony: Friendship Is Magic"

I'm guessing that OP has Space Marines battle with My Little Pony.
I have no idea how this works, but the idea of Space Marines purging the galaxy of ponies is a pleasant one.