I'm french and I need help to choose between a few English names for my mini video game. It's about a sort of angry dark Pac-Man with teeth. It crunches buildings and people (hey, it's only a game, nobody was hurt).
I provide a picture to show the context:

Here are the few names I have in mind:
1/ city cruncher
2/ cities cruncher
3/ city's cruncher
4/ cities's cruncher
When I apply Google translate on them, the 3 and 4 are better fitting my idea. But for me the "'s" seems harder to spell/read/memorize, particularly for the 4.
What name seems better for you, and why?
PS: Hi to Freelang community, it's a long time I haven't posted here
