Tentomon is a ladybug-like Digimon and Koushirou Izumi partner. He speaks in a Kansai dialect. He has the ability to digivolve into insect-type forms with electric-based attacks. He is highly intelligent, curious, and polite. Although he admires and is fascinated by Izumi's curiosity, he cannot understand it and is baffled by Izumi preferring his laptop over socializing with his friends. Tentomon occasionally becomes annoyed when Izumi becomes sidetracked by his curiosity.

Tentomon evolve into Kabuterimon (Champion), MegaKabuterimon/AtlurKabuterimon (Ultimate) and HerculesKabuterimon/HerakleKabuterimon (Mega).