Tapulous has teamed with rock band Metallica for the release of its new Tap Tap Revenge: Metallica game for the iPhone and iPod touch. Like prior Tap Tap releases, Revenge: Metallica is a rhythm game in which players attempt to hit one of three, four, or five tracks in time with the music and with the note indicators moving down the screen. The game features 10 songs, four boss tracks, a landscape mode with four rails on hard difficulty and five on extreme, an arcade mode, a Bluetooth multiplayer battle mode, four difficulty levels, and Facebook Connect functionality. Notably, several iLounge editors wondered whether Tapulous would continue releasing artist-specific editions of Tap Tap games after its launch of Tap Tap Revenge 3, which can be expanded via an in-game music store; this release seems to suggest that it will. Tap Tap Revenge: Metallica is available now from the App Store and sells for $5.