Zudomon

Zudomon is a Sea Animal Digimon. His name originates from the Japanese word zudon, the sound of a thud.

Zudomon resembles a giant gray and orange walrus wearing a turtle shell with large spikes coming out of it, he generally carries a large metal hammer and he has a horn that absorbs electricity.

Digimon Frontier
Some smaller than usual Zudomon were seen at the Great Trailmon Race.

Digimon Data Squad
When the DATS members and Akihiro Kurata's group appeared in the Digital World near Mercurimon's castle, Gotsumon unleashed a Zudomon on them. He prevented Masaru Daimon and Agumon from attacking him. It took MachGaogamon and Lilamon to defeat him.

Digimon World 2
Zudomon digivolves from Ikkakumon and Tortomon, and can digivolve to Plesiomon or MarineAngemon.

Digimon World Card Battle
Zudomon belongs to the Water card group.

Digimon World DS
Zudomon digivolves from Ikkakumon, and can digivolve to Vikemon or Neptunmon. Zudomon also appears at the Hard Mountains.

Attacks 
 * Vulcan's Hammer (Hammer Spark): Slams his hammer on to the ground, shooting a destructive wave of energy, mostly shaped as an arrow towards his opponent.
 * Horn and Tusks (Horn & Tusk): Attacks with horn and tusks.
 * Hammer Boomerang: Swings his hammer like a boomerang at his opponent.
 * Glacier Spear
 * Ice Lord Bump: Sends a wave of ice to attack the foe.
 * Hammer Head: Shoots energy shaped like his hammer upwards, attacking enemies.
 * Thor's Fury (Thor Fury): Spins around, hitting opponents with his hammer.
 * Anvil Smash: Charges his hammer, then smashes it down on opponents, blasting them back.
 * Vulcan Vengeance (Vulcan Revenge): Smashes his hammer really hard on the ground, causing energy to radiate from the hammer, damaging foes and blasting them back.