Merukimon

Merukimon is a God Man Digimon whose name and design are derived from Mercury, the Roman god of messengers and thieves. One of the Olympus Twelve, it is a Digimon god of genius who boasts of being the fastest in the Digital World. It is able to outstrip the fastest runner, becoming impossible to perceive with the naked eye, so it is said that all images of Merukimon in records and documents are just afterimages. It hates to stay in the same place, and as it is always wandering the Digital World, it is surely difficult to encounter. Merukimon excels in Shamanism, and its favorite knife "Aztec" is able to slice through space.

Digimon World Data Squad
Merukimon appears in Digimon World Data Squad. He is the evolutionary tree of Gaomon and digivolve from WereGarurumon. He appears as a boss in the Ice Labyrinth (as has already closed the game for the first time, and after defeating Lucemon again this stage).

Digimon World DS
While Merukimon doesn't appear in the game, one of the Digifarm items is modeled after it.

Digimon Accel: Nature Genome
Attacks
 * Thousand Fist: Uses a short and speedy teleport to get close to the opponent, then pours on a hyper-barrage.
 * Spiritual Enchant: Uses its excellence in Shamanism and the knife Aztec to summon apparitions from a parallel universe.
 * Super Charge

Attacks in Digimon World Data Squad Attacks in Digimon World Dawn and Dusk
 * Mirage Image
 * Kerykeion