Well, having seen this ending numerous times, I just thought that I should talk about it, as it is my favorite ending.
Given that I'm tired of having people say that Crono never talks, even though he does, even besides this ending, I'd just like to let everyone know that there is such an ending whereupon Crono speaks. Just letting you know. In case anyone wanted to know how to get it, watch Schala use her pendant on the door in Zeal palace, and then drop everything, and go fight Lavos, be it through the bucket, or through the right telepod at the fair grounds if you are playing New Game Plus.
Alright, now that the formalities are done with, I would just like to state that this is my favorite ending ever, although I wonder why he didn't say something else. I'm often left to wonder if there were a purpose to Square making Crono's moment of viewable speech so comical. I mean, perhaps they could have made it a romantic moment with Marle, or perhaps a moment during the final goodbyes, where all the characters would remark at the fact that Crono talked. Honestly, it may seem stupid for me to ponder this, but pondering why a developer chose to do something is just as much an analysis as speaking about an in-game development. Anyway, it's just food for thought.