Beta is free to download on PSN. I'm not sure how much of it I can talk about, but so far in the hour I played it: HILARIOUS AS ALL HELL.
Just going through the tutorial was enough to amuse me. Normally I'm not at all interested in First Person Shooters, and online vs other people type FPSs at that usually make my skin crawl, but tack on a Batman theme, and make it funny and I'll give it a chance. Two for two, WB Games and Monolith. Anyway, give it a shot. It's free, so nothing to really lose.
Edited, Jan 24th 2012 11:15pm by lolgaxe