The DS version is exactly the same as the PSP version but with touch controls, so I cannot really justify completing it for the binge I'm doing. I played through every minigame just to test out whether they are different, and no, not really. The rail shooter section has enemies a bit further away sometimes because it is easier to aim at smaller objects with the stylus, but that's about it. The spells generally work better here, as button and analog combination tends to be a bit wonky in comparison. I had about half an hour of the game left before finishing, but my goal is to play the different versions of these games, not just play the same game several times for the sake of seeing, like, a different texture.