Chris Buffa (Modojo): Overkill 2's description reminds us of used car salesmen, except the developers at Craneballs Studios substitute vehicles for weapons. "Do you like guns? The mounted grenade launcher is the right baby for you." It's very over the top, in-your-face marketing, clearly designed to pump up smartphone and tablet users that love pulling triggers, real or otherwise. You know what? It works. It works quite well.