Long before the Autobot/Decepticon war came to Earth, Kobushi was operational on the surface of the Moon after the crash of the Exodus. He spent years in relative solitude, perfecting his martial arts skills, particularly the study of Metallikato. He believes that every enemy he brings down makes him stronger.
After the Unicron Battles, Kobushi and his fellow Lunar Assault Mini-Con Team members have remained on the Moon, spending their days terrorizing human settlements and the Exploration Mini-Con Team. He is particularly focused on defeating Landslide, the strongest member of the Exploration Team. He hopes to use his hidden diamond-tipped drill arm to one day bring down the powerful Mini-Con, bringing him that much closer to his idea of personal perfection.
- Kobushi vs Landslide (Mini-Con 2-pack, 2005)
- A redeco of the Adventure Mini-Con Team member Dune Runner, Kobushi transforms into a "sandrail" dune buggy with top-mounted artillery cannon. The gear-wheel mechanism in hs torso makes the barrel of the cannon move back and forth when his vehicle mode is rolled along, or when hooked up to the gear mechanism of the Armada Cyclonus mold. He was only available in a two-pack with Landslide.
- "Kobushi" in Japanese means "fist". When split into two words, it can also mean "little warrior". Cute!
- Kobushi's packaging copy pretty clearly indicates that it was written with a different toy-mold in mind, specifically, the mold used to make the drill-machine Mini-Con Monocle, an Autobot-allied character.