"Kerovan-Ouster" is a red statue-like monster.
The "Kerovan-Ouster" was the monster that fought Andros on KO-35 during an invasion by a huge army. It was responsible for putting Zhane into a coma when he threw himself in front of Andros to protect him from the monster's attack.
- This monster was given it's nickname by the fans and is a red repainted version of Ghoulum from Big Bad Beetleborgs.
- Back in early 2003, shortly after the series changed hands from Saban Entertainment to Disney, some of the monster costumes, including Kerovan-Ouster, were auctioned off by ABC Auctions. It sold for $250.