My system:
Modded Wii 3.2J (downgraded from 3.3J)
HBC
Backup launcher
Loads of IOS including 33, 36, 37, 38, 53, 55
Basically whenever I run Dokapon Kingdom, either through my normal modchip or Backup Launcher, the game gets past the wiimote warning screen but then an "in game" error message...