Trumpy, known as Rarapappa (ララパッパ Rarapappa?) in the Japanese version, is a virus in the Mega Man Battle Network series that resemble a brass instrument wearing headphones. They appear in later games from the series starting with Mega Man Battle Network 3. A Trumpy jumps up and down in the right-most column on the enemy's side, pausing after four jumps to play music that will affect either MegaMan or its allies. However, Trumpies don't benefit from their own music.