An Ultimate Digimon similar in appearance to a long-legged spider. In its normal form, Infermon has its limbs and head extended, but it can also take on a cocoon form were it draws its limbs inside its body. In cocoon form, its defense increases to the point where it can repel any attack, although this limits its movement to a straight line. It can easily overcome the tightest security to infiltrate any network. Should Infermon ever be released onto the Network, the world would be plunged into chaos. Its special moves include Spider Shooter, where it fires an energy bomb of incredible destructive power from the gunport in its mouth, and Cocoon Attack, where it charges into foes in its cocoon form.