in a lot of the squarenix/soft game's they put in nice little goodies to play with and challenge (somewhat) the players such as the ultimate weapons in VII and mini games like jump rope on IX. but sometimes they put some of the most useless and pathetic things in games such as omega in X which was easier to beat considering how good the characters are by then. and in other non-fantasy game such as kingdom hearts they have the selection of 3 items (a sword, shield, and staff) and they were absolutely useless after 5 minutes. the same goes on later when you are asked by the teen versions of tidus, wakka, selphie about what makes you mad and so on....completely useless in the aspect of the game....
anyways, theres many rediculous minigames, bosses, useless selections, and other extra's that are just not challenging (unless your my 7 yr old sister) or just useless. anyways im running on lol

hmm...someone hasn't done their research...

...the weapon you choose at the beginning of KH determines your attributes and how your stats progress in levels.Then the questions you're asked determine how fast you level up, the usefulness of your teammates, and other various technicalities.

Now one extra I found extremely needless was about 90 levels of the Via Infinito, it seemed rather silly to have 20 easy levels of running around inbetween the extremely difficult boss fights.