XBLA (Xbox 360), $20 ★★★★ Spelunky is not a game for those who liked to be coddled. Within its 2D, randomly generated caves, death is frequent and permanent. Spikes, infinite drops, yetis and the undead all await. Bombs and rope are the core tools on hand, but this platformer is all about persistence. Given the random environments, progress can be slow, but Spelunky is all the more rewarding for it. Out now.