-Hyper Kabuto will time-travel back to before Cassisworm can even freeze time, and destroy him.
-All this screwing with time will create a temporal flux and cause him to simply cease existing.
-After a tense staredown, Riku confuses him by jumping around acting like a monkey, allowing the Riders to destroy him.
-Dark Kabuto is defeated by Kabuto, but then he comes back and attacks Cassisworm, who defeats him again, but he turns into a flying blob thingy and Kabuto absorbs him and regains the Ice Beam so he can freeze Cassisworm and then kill him. For some reason, a space station is also about to explode during all this.
-Sasword cuts off his arms, and he ain't gonna be freezin' no time if he can't move his arms. The Riders then destroy him.
-Hyper Kabuto "magically" finds a way to defeat him, even if it wouldn't have worked a few episodes back.