I did that for a lot of games...
Tales of Symphonia: Lloyd goes on a journey to destroy those rock things that everyone has in their hand... I forget whqat they're called.
Chrono Trigger: It's pretty much the equivelent of any other CT ROM hack youve seen trying to make a sequel.
Legend of Zelda: Ocarina of Time/Majora's Mask: On his way back to Hyrule from Termina, Link gets attacked by a creature from hell and is ripped into a "Darkness Beyond Time" sort of area. Thirty years later, the land of Hyrule has been reduced to poverty and famine. A young thief from the streets, I named him Claude, A Zoran/Gerudo princess named Taylken, and a winged boy named Max meet up all by chance. After a few mishaps and obligated adventures, they find themselves on a journey back into time, and Save Link to correct history. Claude is the key of the story, and is needed for time travel, considering he is the only person besides Link who can wield the master sword. It's later found out that Claude is a reincarnation of Ganondorf, as shown during reocurring transformations into a demon-like man-beast who wields a scythe. At the end, Claude and crew kill Ganondorf, the mastermind behind it all, rescue Link from captivity (He's still a young boy), and history is set right again. Sadly, Claude is dead, and Taylken, Max, and everyone else they've met have no memories of eachother due to time being rearranged. (This was greatly inspired by CT and CC, as you can imagine...)
Christ, I should really make that into a fanfic.