I'm trying to get you to think about why you're reacting so heavily to the game. Why do you insist that it's a mockery? Jesus is the hero in this game. He's the main protagonist who accidentally sets off a zombie apocalypse and then goes on to save the day, albeit in a funny, somewhat slapstick way.
I honestly don't see why this needs to be offensive. So far the only thing I've seen is people saying he does things like fart on his enemies, therefore it's offensive. So it's a silly game, therefore offense? I don't know man. I think it's a lot of hullabaloo over something silly. That infamous violent stickman cartoon where the protagonist is attacked by Jesus and slices him in two, multiple times across multiple episodes; I'd understand if you took offense to that. This, not so much. Jesus is the hero of this game, not the villain. If it was intended to mock him, it probably wouldn't have made him the hero. It's a humorous little game, nothing more.
I've never been a fan of the mindset that religious material is off-limits to humour. I think that sometimes we're a little quick to take offense to things when we really shouldn't. It's the whitest of all white people problems. I actually think the market should be flooded with religious media such as this. Make a Fist of Muhammed. Make The Chronicles of Mary: Tooth of the Eel. Make a movie called Jonah: The Hunt For The Grey Whale. Don't stop making them until people eventually start to realise that this has no real world impact. Your faith meter doesn't drop a notch every time you see something like this. You don't get clobbered over the head with a fish by angry atheists because of Fists of Jesus. Keep going until people start to realise that religious material and humour are not incompatible and that any offense taken to something silly like a game about punchy punchy Jesus is just an unnecessary increase in blood pressure.