Like many iPhone games, Bust-a-Move offers multiple ways to control the action. In this case, players can pull a bubble back like a pinball and fire it into the game board, or they can tap a direction to launch a bubble. Pricing is US$4.99 and iPhone OS 3.0 is required. Versus mode is unavailable on the first-generation iPod touch.
Thanks to Macworld for the heads-up.