WaruSeadramon

WaruSeadramon is apparently the corrupted form of MegaSeadramon and it never appeared in the show, however, it appears in Digimon World and Digimon Card Battle.

Evolution

 * Fresh (Baby) - Botamon
 * Baby (In-Training) - Koromon
 * Child (Rookie) - ModokiBetamon
 * Adult (Champion) - Seadramon
 * Perfect (Ultimate) - WaruSeadramon
 * Ultimate (Mega) - ChaosSeadramon

Attacks

 * Poison Wave
 * Dark Blast

Digimon World
He aids Ogremon to fight against the player. After being beaten he never shows up again.

Digimon World Digital Card Battle
He is the guardian on the first floor on Mugen Mountain. He belongs to the water group and has 1650 HP, Circle attack 650 and interference Cross attack 200.