I tested Triforce heroes & Marioparty star rush (Both EU CIA) on my PAL 3DS and JP 3DS, when I start Download play on my PAL 3DS es they can find each other but my JP 3ds can't, and when I run the game on my JP 3DS the Pal ones can't find it.
Also MK7 (Gamecard crashes when I make a room on the...