Suggestion:
Aw, my cousin had that game for the gamecube, have you tryed puting the gamecube action player inside the wii (seeing as though the wii can play gamecube games) if you have then im going to assume that your going to have to buy a another action player
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this is just my thinking on it. i haven't tried anything. they say they have g/c backup loaders now. if you have the game, you don't need the loader… possible, i haven't tried this. a hacked wii can load games from any region if you have the settings right in the loader. again though the g/c stuff i'm not certain about if it works on a g/c you can load it using the proper loader. honestly, i'm to lazy to fire mine up to see if the loader (usb loader gx) recognizes it. i think this would likely be the case though. the obvious difference in the ntsc games and the pal games is the color output. i think it's all video format related though. i do know though that jap consoles are ntsc (what we use in the states) so, if you are here, in the u.s. likely you may get by without doing anything more than just playing it. as for the action replay, couldn't tell you much about it. i use ocarina to cheat. if the loader picks up the g/c game, it's worth looking into. just note, for the usb loaders to work, you wii needs to be hacked/soft modded. i doubt you'll need to use a loader for a ntsc game though if your console is already ntsc. hell, if the g/c console played it, i'm sure the wii can play it.
to play Japanese games you must buy a Japanese Wii. All Wii units are locked to each country code, like DVD players