Mega Seadramon

=Attack Techniques= undefined

=Evolution=

Evolves From

 * Airdramon  (with or without Ebidramon)
 * Any Adult Water Digimon from Digimon World: Digital Card Arena
 * Any Adult Water Digimon from Digimon World: Digital Card Battle
 * Any Blue Lv.4 Digimon from the Digimon Card Game
 * Any Adult Blue Digimon from the Battle Spirits Card Game
 * Coelamon   (with or without Seadramon)
 * Coredramon (Blue)
 * Coredramon (Green)
 * Digmon (with Submarimon)
 * Ebidramon (with or without Airdramon or Geo Greymon)
 * Gaogamon
 * Garurumon
 * Gawappamon
 * Gekomon
 * Geo Greymon (with or without Burst Evolution or with or without Ebidramon)
 * Gesomon (with or without Seadramon and Shellmon)
 * Ginryumon
 * Gold V-dramon
 * Growmon
 * Kabuterimon
 * Karatuki Numemon
 * Leomon
 * Monodramon (Warp Evolution)
 * Peckmon
 * Reppamon
 * Rukamon
 * Seadramon        (with or without Coelamon or Shellmon and Gesomon)
 * Shellmon (with or without Seadramon and Gesomon)
 * Stingmon
 * Submarimon (with or without Digmon)
 * Tylomon
 * V-dramon
 * Whamon Adult

Evolves To

 * Aegisdramon (with Plesiomon and Crossmon)
 * Any Blue Lv.6 Digimon from the Digimon Card Game
 * Black War Greymon
 * Boltmon (Burst Evolution) (with or without Death Meramon or Pumpmon)
 * Demon
 * Giga Seadramon (with or without Waru Seadramon, Tonosama Gekomon and Gigadramon)
 * Griffomon (with Blossomon or Delumon)
 * Imperialdramon: Dragon Mode (Black)
 * Jumbo Gamemon
 * Leviamon  (Burst Evolution)
 * Marin Angemon  (with or without Lilimon)
 * Mega Seadramon (X-Antibody) (with X-Antibody)
 * Metal Piranimon
 * Metal Garurumon (with Knightmon, Big Mamemon, or Metal Mamemon)
 * Metal Seadramon     (with or without Anomalocarimon or certain Digimon from the Pendulum series  or Tylomon, Megadramon and Metal Tyranomon)
 * Mirage Gaogamon
 * Mugendramon
 * Neptunemon
 * Plesiomon  (with or without Hangyomon or certain Digimon from the Pendulum series)
 * Plesiomon (X-Antibody)
 * Ravmon
 * Saber Leomon (with Piccolomon or Triceramon)
 * Seraphimon
 * Shine Greymon
 * Sleipmon
 * Suijinmon
 * Surfimon
 * War Greymon
 * War Greymon (X-Antibody)
 * Victory Greymon

=Appearances=

A Mega Seadramon was a servent of Vamdemon. When Jou, Takeru and Patamon tried to enter Odaiba through Vamdemon's fog barrier they were attacked by Mega Seadramon. Jou's Gomamon evolved to Ikkakumon but Mega Seadramon attacked them and defeated Ikkakumon. Takeru was in danger of drowning as he fell off Ikkakumon's back. Jou saved him and soon his Crest of Sincerity glowed allowing Gomamon to evolve to Zudomon. In his Perfect form it was finally able to defeat Mega Seadramon allowing them to enter Odaiba.

In "Submarimon's Escape from the Bottom of the Sea", the same Mega Seadramon is controlled by an Evil Spiral. It attacks and traps the Chosen Children inside of an underwater oil platform and waits for their oxygen to run out. They sneak Iori out in a one-man escape pod. He returns with Jou, his Ikkakumon and a Whamon. Ikkakumon fights with Mega Seadramon but Mega Seadramon has the upper hand. However when Iori accesses the Digimental of Sincerity that had been hidden in the platform he armor evolves his Armadimon to Submarimon. Working together Ikkakumon, Submarimon destroys the Evil Spiral freeing Mega Seadramon.

In "Assault on Black War Greymon" the same Mega Seadramon helps the Chosen Children by recruiting several Rukamon and helping them defend a Holy Stone from Black War Greymon in the ocean. Despite their effort the stone is still destroyed.

Mega Seadramon was one of the 99 dragons cut by Zanbamon's Ryuuzanmaru in order to evolve to the Ultimate level.

Mega Seadramon appears as an obtainable Perfect-level Data type Digimon in Digimon World.

Mega Seadramon, along with Herakle Kabuterimon and Hououmon, are the only obtainable Perfect Digimon that are never seen as NPCs in the game, so the only way to witness a Mega Seadramon in the game is to evolve your Digimon into one. Mega Seadramon has also a boss variant in the game, being Waru Seadramon, which serves as a member of Orgemon's gang.

Seadramon, Garurumon, Whamon, Coelamon and Shellmon all can evolve into Mega Seadramon, in order to evolve into Mega Seadramon, your Digimon must meet the following criteria: Mega Seadramon's Digivolution item is the Coral Charm which lets any Adult Digimon evolve into Mega Seadramon.
 * At least 4000 MP, 500 Offense, 400 Defense and 400 Brains stat requirements
 * Less than 5 Care Mistakes
 * A Weight between 45 to 55g
 * Bonus Conditions: Don't battle at all and have at least more than 40 techniques mastered.

Mega Seadramon is an obtainable Digimon. Evolves from Coelamon (0+ DP) or Seadramon (0+ DP) and can evolve to Metal Seadramon (0+ DP).

&
Mega Seadramon is an obtainable Digimon that can be evolved from Seadramon. It is one of the Digimon available, along with Coronamon and Growmon when choosing the Attack starter pack. After the attack of the mysterious life-form at the beginning of the game, it degenerates to Yuki Agumon.

Mega Seadramon is an obtainable Digimon which is evolved from Airdramon, Growmon, Kabuterimon, or Seadramon, and can evolve to Marin Angemon. It can also be obtained as a collectible card. Its card is part of the Mega Digimons (メガデジモンズ Mega Dejimonzu) set.

Evolves from Seadramon or Coelamon. Can Jogress with a compatible Digimon to get Metal Seadramon.

Evolves from Seadramon or Ebidramon. Can Jogress with a compatible Digimon to get Plesiomon.

Mega Seadramon can evolve from Gaogamon, Gawappamon, Geo Greymon, Karatuki Numemon, Peckmon, or Reppamon. Can evolve to Jumbo Gamemon, Mirage Gaogamon, Ravmon, Shine Greymon, or Sleipmon. Can also Burst Evolve into Leviamon or Boltmon.

Mega Seadramon is an unobtainable Leader Digimon.

TCG
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=Additional Information=