Fusion Confusion

'''The DigiDestined encounter a new type of digivolution when two Digimon become one, and as always, Izzy is ready to explain. Though first, the group must deal with the time bomb that is Ken's old base.

Synopsis
Rushing into the base while Paildramon battles Okuwamon, they reach the center of the base and Ken puts his Crest in. But the reactor isn’t stabilized! They follow the pipes into the reactor where they find a stream of darkness. T.K. and Kari recall feeling this same darkness during their last encounters, and Ken explains that this darkness has been with him since he first came to the Digital World. Outside, Paildramon defeats Okuwamon, then races to the kids. The base is about to explode when Paildramon rushes in and disposes of the darkness reactor, which stabilizes. Afterward, Paildramon destroys the base completely. The Digidestined return to the Real World, but Ken still chooses to stay separated from them. The next day, Izzy explains to them how DNA Digivolving works and that it took place before with Omnimon, and why the older kids' Digimon can’t Digivolve to Ultimate and Mega anymore.

Digivolutions
(Number indicates order of occurrence.)

Quotes
T.K.: "There's no way they'll get through all this rubble." Yolei: "Uh, I suppose Ken and Davis just didn't hear you, T.K."
 * —T.K. is wrong for once

"The warp is returning to normal. Oh, but my stiff neck isn't. I got to learn not to get so excited."
 * —Izzy tends to get stressed out in intense situations.

Davis: "Sometimes I wish he weren't so smart so he didn't have so much to tell us." DigiDestined: "Davis!" Davis: "I'm sorry, but it hurts my brain to hold all that information!"
 * —Davis has yet to appreciate Izzy's knowledge.

"Until then, we'll even use balls of yarn to fight, if we have to."
 * —Gatomon knows that when all you've got is a hammer...