Used EHHYPHTENNMA thanks! Back on topic: I love the sound in: Isotope (music, mostly) SID Player (OK, this one isn't a game, but it has a vast collection of Commodore 64 game music!) BaDaBoo (too damned cute!) Vector Tanks (They pegged the retro sound) Blue Attack (music and sounds) Roadkill Cafe (this game totally cracks me up) TaxiBall (All vocal soundtrack and sound effects) Traffic Rush (love listening to the cars zooming around) Bloons (that damn song sticks in my head for days) Little Tank That Could (tank engine sound is cool)
World of Tunes and Mechowars have awesome music in them! I've honestly sat on my bed and listened to the mechowars music without playing for a while...