Up to eight players can play a song together. Each player picks a different instrument and everyone hears the mistakes of everyone else. It's enough for one player to have the game to play multiplayer.
Simliar to other rhythm games you pick a song, an instrument and then play notes incoming on the top screen at the right time using the buttons of the DS. It is even possible to create your own MIDI compositions via the song editor.
This page contains co-op info for Daigasso! Band Brothers on the Nintendo DS. All information about Daigasso! Band Brothers was correct at the time of posting. Information is subject to change. If you see any errors please email us.