Well here's the thing...the regular ending of the game has six different versions, depending on two factors:
1) If you killed Magus or let him join you.
2) How you fight Lavos in the end.
The first choice has two options, obviously. The second choice has three:
a) The bucket
b) The BO
c) The Epoch
For whatever reason, all of those give slightly different endings. I haven't the patience or care to play through all those conditions to see the differences, but anyway...it's 'struth!
So incorporate those 6 ways to end it normally with the additional 9 endings, and the lose-to-Lavos ending, that makes...what, 16 endings, something around that?