Anyone else dropped the $15 for this? I have and I'm addicted. For those of you don't know what Spelunky, it's a platforming/rogue game, which means as Drake and now a million teenagers now say, YOLO. Also, levels are randomly generated. Originally a game you could play for free online (which you still can), the game on XBLA is much updated, with increased difficulty and improved graphics.
You play as an explorer who tries to make it through four worlds, with each world having four levels. There is a big ramp up in difficulty between the first and second world. I've died around 250 times and have only made it to the third world twice. People who like the sadistic nature of the Binding of Issac would enjoy this game. Spelunky is without a doubt much harder. Unlike Binding of Issac, you don't permanently keep any items throughout your various playthroughs. People at Xbox360Achievements.com have given it a 10/10 in terms of difficulty. Nevertheless, I highly recommend this game - it's loads of fun. There's shopkeepers who will terrorize you on later levels if you steal from/attack one of them, damsels you can save or sacrifice to the gods, and badass weapons like shotguns and freeze rays. Purchase it if you haven't already!