Zudomon

Zudomon is a Sea Animal Digimon whose name is derived from the onomatopoeia for a hammer thud (ずどん), and whose design is derived from the walrus. Ikkakumon digivolved further, and as a Power Digimon it became able to walk on two legs. It further guards its thoroughly tempered muscles with protectors, which it made from the pelt and shell that it stole from its opponents. The horn on its head has been replaced with one that became impossible to regrow, so it voluntarily processed it into a saw shape. However, after all is said and done its strongest weapon, which it dug up from ancient ice, is its "Thor's Hammer" (Thor Hammer) made of Chrondigizoit.

Digimon Frontier
Some smaller than usual Zudomon are 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 depending on his DP. His speciality is Ice and his special weapon, Vulcan's Hammer, allows to attack 2 Digimon at once.

Digimon World 3
Zudomon is available as a Blue Ultimate Card with 34/30.

Digimon Digital Card Battle
The Zudomon card is #040 and is an Ultimate level Ice-type card with 2090 HP, needing 40 DP to digivolve into, and worth 20 DP in the DP Slot. Its attack, "Vulcan's Hammer", inflicts 700 damage, its  attack, "Horn & Tusk", inflicts 300 damage, and its  attack, "Cold Crusher", inflicts 250 damage, and lowers the opponent's  attack to 0 power. Its support effect is "If own Specialty is Ice, opponent's Attack Power is halved."

Digimon Dawn/Dusk
Zudomon can digivolve from Ikkakumon at LV 32 with 160 attack and 4100 aquan exp and digivolve to Vikemon.

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

Digimon Rumble Arena 2
Zudomon is Gomamon's second Digivolution.

Attacks 
 * Vulcan's Hammer (Hammer Spark): Strikes the opponent with the shock wave and sparks produced when it swings down its Thor's Hammer.
 * Horn & Tusk
 * Vulcan's Hammer (Hammer Boomerang): Throws its hammer like a boomerang.
 * Thor Hammer