Here's the references I was able to catch:
- Servebot head on opponent; In the game you could grab the heads at the toys, then put them on a zombie to get thee "Outtake" rating in a picture.
- Shopping cart attack: You could use shopping carts to run over zombies.
- Zombies: A rather obvious one. But to me Frank's use of zombies as attacks is reminiscent of Jill's zombie and creature attacks in Marvel vs. Capcom 2.
- Throw attack: Frank could learn this by leveling up.
- Megaman Costume attack: You could earn a Megaman costume with a real buster shot weapon by clearing the zombie genocide achievement.
- Bat attack: Just one of the many weapons you could use in the game.
Indeed, Frank West is the man, the dog, the sh*t

.