Originally Posted by
Wolf Kanno
The controls vary, basically all of the Pins you use function differently and work through the various features of the DS. The fire Pin lets you create flames by drawing on the Stylus screen, the Quake pin involves shaking you DS as you play and one pin even involves shouting at the screen.
The complicated part is the secondary character on the top screen, they almost use the d-pad exclusively for their attacks and they basically have three to four scripted combos to use. The hard part here is trying to do both at once but a lot of that can be solved by setting up Neku to a playstyle that works for you.
The other thing I should mention is that the game does allow you to change the difficulty setting whenever you feel like it, the only thing it really affects detrimentally is the item drop rate, but if you're not playing for completionism, then there isn't an issue.