 Izzy and Tentomon are searching for Gennai when they captured by Vademon. Izzy gives Vademon his curiosity and soon after tag and crest. Tentomon becomes so sad he de-digivolves into Motimon, and only then does Izzy realize the mistake he s made. Together they get back Izzy s curiosity and tag and crest, and Kabuterimon digivolves to ultimate and defeats Vademon.