The Battle of the Bands (ライブコンテスト?, Live Contest) is a bonus feature in Rhythm Heaven, unlocked after the player has completed Remix 10. It can accessed by tapping the right-most button on the blue ribbon in between the Rhythm Games sections.
On the entry screen, two buttons labeled "Beginners Enroll" (for the ★Basic Course★) and "Pros Enroll" (for the ★Technical Course★) are shown. To enroll, one must first complete all the Guitar Lessons in the ★Basic Course★ or the ★Technical Course★ in the Medal Corner each with at least an A Rank, then the player can enroll in the respective course.
The game takes place at Rock 'n' Roll Hall, where the Rockers are going through the songs from the ★Basic Course★ or ★Technical Course★ of the Guitar Lessons, after which they can place 1st, 2nd, 3rd, or 4th in the results.
In the ★Technical Course★, if the player does really well, they get to play "that one song" at the end.
Controls
Tap: Mute strings
Tap (Hold): Mute strings/Prepare to strum
Tap (Release): Cancel
Flick: Strum
: Bend notes (Lefty Mode) (★Technical Course★ only)
: Bend notes (Righty Mode) (★Technical Course★ only)
Perfect!/Ace!?: The player strums correctly, causing white bolts to appear. The audience cheers.
Early!/Late!?: The player strums slightly off tune, causing blue tears to appear. The audience claps.
Miss...?: If the player strums at the wrong time, the strum is very off tune, causing yellow vines to appear. Regardless if the player strums at the wrong time or doesn't strum when they should, J.J. Rocker stumbles over, and the audience boos.
The camera is situated behind the Rockers, allowing the player to see the audience, which includes almost every character in the whole game, as well as the game's staff hiding in the corners. The missing characters are instead the other "bands" in the competition, being the Pop Singer, the Chorus Kids, DJ Yellow, The Dazzles, The Frogettes and the Tiny Ghosts.