I love playing this game, but if I was to give an example of why others may not like it so much, it would be the lack of depth to the story and characters.

Maybe lack is too strong a word, but I did tend to notice, especially towards the end of the game, that you go to places simply because you were told to. There was a sense of "let's get the next crystal, defeat this boss, get to the next crystal".

It is a challenging game, one which requires a certain amount of effort to play well, but that makes beating that certain boss or obtaining the next crystal all the more rewarding.