Kogamon

Kogamon is a Mutant Digimon whose name and design are derived from the Kōga-ryū school of ninjutsu.

Digimon World Dawn/Dusk
Kogamon appears in Loop Swamp. In the Insect Species quest "Loop Swamp Rumor" one, mistaking you for Musyamon, attacks you as you return the katana Palmon found to Musyamon. It also digivolves from Mushroomon. DNA Digivolving it with Ninjamon will give you a Cherrymon.

Attacks Variations / Subspecies
 * Kōga-ryū Kage Bunshin (コウガ流影分身)
 * Makibishi (撒菱)
 * Ninjamon