So recently I've gotten back into Dragon Quest IX and I thought to myself that my cousin would love this game, which he told me it look fun after I showed it to him. However, he broke his DS years ago and he has a 3DS now. And I've asked on Reddit about this issue cause I want to play with my cousin and so far I've gotten mixed results (still got my old DS though so I could still play with people that way.) But what was most confusing is that I was watching the youtuber saigancat play DQIX and he was playing multiplayer, and he seemed to be on the 3DS. (He mentioned the Streetpass system, so I assumed that he was.)
I mean, that's potential evidence that it works, but I'd just like to know if we can or not...Still gonna get the game for him though.