Gizumon

Gizumon
Gizumon has spider-like appendages that it uses to crawl around.

Gizumon primarily appears in the Digimon Data Squad anime series, and comes in three varieties: Gizumon, Gizumon AT, and Gizumon XT. Gizumon's name is derived from the word "gizmo".

Digimon Data Squad
Gizumon are an artificial Digimon 'created' by Akihiro Kurata through experimentation, effectively removing the Digimon's heart and turning it into a monster. Gizumon were used for much the same purpose as before, and as 'cannon fodder' against the DATS team.

Ten years before the start of the series, Akihiro Kurata used numerous Gizumon to attempt genocide on the Digital World, an act that resulted in the death of Keenan Crier's surrogate mother, Frigimon.

Attacks
 * Gizumon can fire destructive beams of energy from their eyes, the effects of which can cause a Digimon to permanently delete rather than simply regress into a Digi-Egg.

Their name is derived from the word "gizmo." Gizumon AT likely derives its name from the IBM Personal Computer/AT, and the Gizumon XT version from the IBM PC XT.

Gizumon-AT
Gizumon-AT is said to be the Champion form of Gizumon. Its name is likely derived from the IBM Personal Computer/AT.

Gizumon-AT has no arms and legs, and simply floats through the air, and it has two appendages on the sides of its body that resemble wings, in addition to several cables at the base of its body.

Digimon Data Squad
Akihiro Kurata developed the Gizumon-AT variety, which were stronger and more durable than the original Gizumon. Its first on-screen activity was to wound SaberLeomon so that he could more easily be stopped by DATS. Kurata then used it against Merukimon, and managed to Digivolve it into Gizumon-XT, allowing it to easily overwhelm Marcus Damon and his comrades.

Kurata then used numerous Gizumon-AT and (along with Gizumon-XT_ to ravage the Digital World a second time, this time to collect "Digimon life energy" for the as-yet unknown purpose (later revealed to feed that energy to Belphemon). Curiously, these were all much weaker and less durable than the one that appeared earlier.

Attacks
 * AT Laser: Releases a red laser from its eyeball. It can dissolve its enemy's composition data.
 * AT Hacking
 * Gizmon AT can manipulate the appendages on the sides of their bodies and extend them to strike their enemies.
 * Gizmon AT can manipulate the tentacles on the base of its body and shock its opponents.

Gizumon-XT
Gizumon-XT is said to be the Ultimate form of Gizumon. Its name is likely derived from the IBM PC XT.

Gizumon-XT has the main body of the AT variety, but with long arms and legs, balls for a torso, and a secondary structure on the top of its head.

Digimon Data Squad
When encountering Mercurimon, Kurata managed to digivolve GizumonAT into Gizumon-XT, allowing it to easily overwhelm Masaru Daimon and his comrades. However, Mercurimon sacrificed himself to damage it, allowing Yatagaramon to destroy it.

Kurata then used numerous Gizumon-XT to ravage the Digital World a second time, this time to collect "Digimon life energy" for the as-yet unknown purpose (later revealed to feed that energy to Belphemon). Curiously, these were all much weaker and less durable than the one that appeared earlier. This campaign culminated in Kurata using hundreds of Gizumon to merge with a giant lance - the "Gizumon Javelin", which he used to destroy the gigantic, city-carrying Digimon ElDradimon.

The Gizumon weren't seen again after Kurata's disappearance.

Attacks
 * Gizumon-XT can fire destructive beams of energy from their eyes, the effects of which can cause a Digimon to permanently delete rather than simply regress into a Digi-Egg.
 * Gizumon-XT can manipulate the appendages on the sides of their bodies and extend them to strike their enemies.
 * Gizumon-XT has a secondary attack where it unleashes a destructive energy wave from the upper 'eye' on its body.
 * Gizumon-XT are also known to carry a sort of beam weapon that functions the same as their eye beams, which can also harvest the 'life energy' of their Digimon victims.