Keramon

Keramon is an Unidentified Digimon whose name and design are derived from the onomatopoeia for cackling (けらけら), and as such it has an insanely grinning face. It digivolved from Tsumemon. Its physique has become much larger, and with its huge mouth, it can eat away at much more data than Tsumemon could. Because it eats away at more than 100 megabytes of data per second, the data is destroyed the instant it enters Keramon. Due to its extremely cheerful personality, it thinks of its destructive actions as just part of its play.

Digimon Data Squad
A Keramon larger than normal appeared to help Neon, an old friend of Yoshino "Yoshi" Fujieda. By altering data in the pop charts, it made the singer wrongfully appear to be better than he truly was, and was the true reason why Yoshino dated Neon. During the fight with the Data Squad, Keramon digivolved into a large Chrysalimon.

Digimon World DS
Keramon digivolves from Kuramon, and can digivolve further into Chrysalimon depending on its stats.

Digimon World Dusk and Dawn
Keramon digivolves from Tsumemon at LV 18 with 450 dark exp, but only if you've befriended one previously and can digivolve further into Kurisarimon. Keramon can be found at Magnet Mine.

Digimon Story: Lost Evolution
Keramon digivolves from Tsumemon and can digivolve into Chrysalimon. It is only obtainable by digivolution or degeneration.

Attacks
 * Bug Blaster (Crazy Giggle): Spits out an exceptionally destructive bullet of light while laughing (?).
 * Network Flapping