anyone know much about this one?

http://www.sjgames.com/dice/batman/

I assume it is a light filler game similar to Dino Hunt Dice and Zombie Dice.

that's what it looks to be

10 dice
4 tokens

I asked elsewhere and a response also mentioned Zombie Dice. I've not played it, but I've played Mars Attacks: The Dice Game, and it sounds like the same "engine" as Zombie Dice, so probably also here.