Red Faction Guerilla

I went yesterday and used some trade credit and picked up Red Faction Guerilla for PS3 (thanks to Quint for the recommendation) and I'm enjoying it quite a bit. The game is difficult even on normal. I've made it about halfway through Dust (the second area on Mars) without changing down, but I'm feeling that's coming pretty soon. I love the physics of the game as well as the open world. I've yet to try the online, but I'm going to dig into that later today and see what I think. It's a really good game thus far though with lots of varied missions and lots of "blowing stuff up" which is always good.