yeah, the it was all a dream ending is my least favorite in ANY media, be it books, movies, video games, or even little stuff like commercials or short stories. there was one futurama episode i think did it really well called "the sting" but it is VERY difficult to do it right.
but imagine. you get through the initiation of chrono break, the first "travel" method, the varied characters and enemies, the big dungeons, the bosses and megabosses, and finally, you fight megalavos or whatever and beat him. ony to get:
Chrono. Chrono. Wake up, Chrono!
Were you dreaming your name didn't have an H in it AGAIN?! At least twice a week with this kid! I don't get it. Get out of bed, damnit.