Online play via custom servers often requires specific network configurations. Error code 86420 is a common hurdle, usually caused by firewall or NAT issues blocking peer-to-peer connections.
Nintendo Wii Region: Japan (NTSC-J) Format: ISO (Disc Image) Game ID: RM CJ01 (varies slightly by revision) File Size: Approx. 4.37 GB (single-layer DVD) Mario Kart WII ISO -JPN-
Which of those would you like?