Infermon is the Ultimate form of Diaboromon and the secondary antagonist in Digimon: The Movie, but a minor villain in Digimon Fusion season 3.


Infermon is an Ultimate class Digimon that looks like an armored spider with spikes and horns. He has six legs with three claws on each foot. His legs and head are retractable so he can be protected from certain attacks.

Digimon: The Movie

After Izzy notice a virus in the computer, it attacked a Digi-Egg. Doing the egg mutated and hatched. While he was Keramon he was fighting both Greymon and Kabuterimon. Keramon eventually digivolve into his Ultimate form, Infermon. Infermon easily defeated Greymon and Kabuterimon. When they tried to Digivolve into their Ultimate form, Infermon interupted the Digivolution, causing them to De-Digivolved back to Agumon and Tentomon, giving Infermon enough time to retreat. While they were healing their wounds, Infermon was looking for his programmer. Moments later Gabumon and Patamon came and joined the fight. Agumon and Gabumon warped Digivolve into WarGreymon and MetalGarurumon so they can fight Infermon. When Patamon tried to Digivolve into Angemon, Infermon Digivolved into Diaboromon, and knocked out Patamon. Eventually Diaboromon was killed by Omnimon.

Digimon Tamers

While Beelzemon was killing multiple Chrysalimon, Calumon suddenly Digivolved them into an Infermon to fight Beelzemon, but he was instantly killed by Beelzemon's Darkness Claw attack, absorbing his data too. 

Digimon Fusion (season 3)

When Infermon (as Chrysalimon) was created by the evil Quartzmon, it was almost defeated by Arrestdramon and Astamon, until it digivolved into Infermon. Infermon was so powerful that not even with the help of Tuwarmon, Cho-Hakkaimon, and OmegaShoutmon could defeat it. It seemed that Infermon was about to finish off the Digimon Hunters, until Arrestdramon, and Astamon fused together. They were able to deal enough damage to defeat Infermon, and after that, Infermon digivoved into a giant Diaboromon.


  • Spider Shooter
  • Network Grenade
  • Virus Skater


  • Infermon's Champion form is Chrysalimon
  • Infermon's Mega form is Diaboromon
  • Infermon's name is similar to the word inferno.
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