The true test of a game's potency comes when players close their eyes. Peggle Nights, like Tetris and countless other obsession-worthy puzzlers, will remain seared on the back of your lids. The game's bouncing arcs take over a small part of the brain, insinuating themselves into the subconscious like a catchy song. Peggle Nights is a follow-up to last year's best casual game, Peggle. Besides a barely perceptible nocturnal theme, not much has changed. Players aim and fire pinballs, attempting to nail all the orange pegs before running out of ammo. At first glance, the game seems to rely more on dumb luck then skill, but as things progress, strategy and precision become more and more vital.