When KH2 ended right as Goofy got hit by a rock, I couldn't believe it.

 

Rip Goof

Sora and Kairi find out they were both adopted at birth and Xehanort is their real father meaning that they're twin siblings. Therefore Kairi ends up with Riku instead. Then in KH4 Kairi and Riku's son (let's call him KR for short) who was being trained as a keyblade wielder by Sora turns to darkness and kills Sora's other apprentices thus causing Sora to go find the remains of Daybreak Town where keyblade wielding began and hide away there feeling sorry for himself until he's found by a new keyblade wielder who convinces him to train her but not before Riku is killed by his own son. Then after Sora's new apprentice leaves to go face off against KR, Sora decides to help his friends by using the power of the Book of Prophecies to project a hologram of himself to the place where his friends are preparing to fight KR. He successfully keeps KR at bay long enough for his friends to escape but his use of the Book of Prophecies takes so much out of him that he fades away into light... Only someone who's a true KH and Star Wars fan will understand/appreciate what I just said       

Inb4 Donald and Goofy get Keyblades, lol.