After Tai, Agumon, and Frigimon find Matt and Gabumon in the Freezeland area of File Island, they begin fighting over what to do next. The brawl is interrupted by the appearance of a Mojyamon that had been infected with a Black Gear, causing it to grow to the size of Frigimon. Agumon and Gabumon digivolve to Greymon and Garurumon to fight it and manage to destroy the Black Gear, causing it to shrink down to what Frigimon calls “standard Mojyamon size”, about as large as Agumon.
