No one's mentioned Indigo Prophecy yet? I would have assumed that would be the go-to answer. Fastest spiraling out of control in any game I know of.
Yep, first thing that came to mind. That game really lost me towards the end. I kept thinking back to the brilliant opening, then wondering how it became so ridiculous =|
No, the game didn't make me dislike it due to the end, though I agree it went awkwardly. Not only for it being a bit too crazy, but also abrupt with character relationships and what have you.
Just a bit.