List them, and by 100 percent I mean not just the main part of the game but all of the extras you can do without cheating?

I for one have gotten 100% of Guilty Gear X2 #Reload, I unlocked all of the characters, EX characters, storymode endings, and Missions. I did it all in the span of one whole day.

I also did the same with FFVII, beaten both weapons, got all the materia, got each character's ultimate weapon.