I actually considered the method that used in Korea vs Japan Taiko match(It wasn't tournament, actually.). Yeah that works too, but that method needs more administration, so I don't think that method is good for this kind of big tournament. Also, the best player in the team is likely to be more weighted than others, and I don't want that.
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Some Taiko players prefer non-Taiko-only map so we need to consider that. I'll try to put various kinds of maps.
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Yeah, this is world cup but there's some nice Taiko players with not many Taiko players in his/her country, like noobita or zekira, so that's why I set the rules. There's too many good players in certain countries and that's the problem too.
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About possibility of making god-like international team...
Registration rule wrote:
4. If your country lacks Taiko players sufficient to participate this, you can recruit players from other nations with permission.
That means, only the players from the country that is considered as 'minor' in Taiko can do this. Well, I promise I won't make this Taiko world cup boring :D
This is the first Taiko world cup, so there might be some issues... If problems occur, I promise to fix those things when I settle the next tournament.
Don't forget to participate this world cup RockeDon. You're quite a nice player, you know!