An airship resembling a large onion with wings, it sweeps back and forth, and up and down, but never too low. It surrounds itself with white assistants that can shoot at the player that replace themselves until if managed to fight longer, exhaust Onion Head's supply of assistants rendering him defenseless.
Appearances in Video gamesEdit
Onion Head appears as the first boss of the game, and thereupon, the first boss in the whole TwinBee series.
First Boss from the Boss Rush In the hidden Tokimeki Memorial game.