Daisuke confronts Digimon Kaiser once again in the DigiWorld, where the latter is keeping up a hideous game. Digimon Kaiser's Control Spire is keeping the Digimon from evolving. Two of these Digimon, Tailmon and Halesmon, find themselves in a pinch and end up resorting to the DegiMental. At the same time Hikari and Takeru's Digivice react to the DegiMental and transform into a new type of Digivice. This allows Patamon and Tailmon to Digivolve into Pegasusmon and Nefertimon.