When the Benari-Seijin's secret base falls under attack from the defence forces, they summon a giant monster to cover their escape. Burotogessa is very effective but keeps,accidentally getting in the way of the escape craft. The Benari are so frustrated the eventually shrink their monster to a small size and escape, which infuriates it.
ABILITIES:
Devastating Arms: while underground, can send countless copies of its arms to the surface to attack
UFO form: transforms to flying saucer mode
Cosmos Cannons: fire blasts of stellar combustion