Can't Keep a Grumblemon Down Digimon: Digital Monsters : Season 4 Episode 10

After getting this weird e-mail, Koji broke away from the others to find his Beast Spirit. Not wanting to miss the show, Neemon & Bokomon decided to tag along. The 3 of them ran into Gotsumon, a rock Digimon, who was looking to awaken the Spirit. Then, their old pal Grumblemon came back for some more fun. When Takuya and the rest of the gang arrived, Gigasmon defeated them and ended up taking Zoe's Spirit. So Koji used the jewel Gotsumon found to unleash his Beast Spirit. He Digivolved to KendoGarurumon, and sent the Legendary Mole right over the edge!