I picked up Smash Up a month or so back. It seemed pretty gimmicky—ninjas! robots! dinosaurs!—but I figured I’d give it a shot, gimmick or not.
Only just got around to playing it. Boy, it is an inexact game. It’s taking the approach of something like Magic the Gathering—simple rules systems made complicated by the cards that override them—and throwing out all the precision in describing those systems. There was a lot of ambiguity we had to interpret on the fly, and this was only the base game with one expansion.
Still, with the right two or three people I can see the appeal of the gimmick. As long as no one’s taking things too seriously or personally, the absurdity of the game is kind of fun, and some of the factions are pretty funny.