Flutter vs. Gesellschaft (フラッター号ＶＳゲゼルシャフト号 Flutter vs. Gesellschaft?) is a recurring music from the Mega Man Legends series composed by Makoto Tomozawa. It plays in the beginning of the aerial battle between the Flutter and the Gesellschaft in the first Mega Man Legends game, and is used as the theme of Mega Man Volnutt and Tron Bonne in Namco × Capcom, Tatsunoko vs. Capcom, Marvel vs. Capcom 3 and Project × Zone. It is present in the soundtracks Rockman DASH Original Soundtrack, Namco × Capcom Original Soundtrack and We are ROCK-MEN!.