yes though online play could have region lockout
If it is a Japanese Gamecube, then do you think it can play Japanese Gamecube games?
Yes the n64 can but to play Japanese games on the system is to get rid of the plastic tabs in the cart slot because that stop Japanese games from going in.
Japanese games can play on American consoles, vice versaONLY.
No.
Yes, but most games are only in Japanese. so if you know Japanese go for it!
Yes.
You can not you need a Japanese PS2
Some can and some can't. But a majority can't because of region-lock. You need a Japanese 360 to play most Japanese games.
Yes. The DS lite is not region locked, a Japanese model will play DS games from the US.
Yes, the game will be in Japanese though.
Yes. DS games are not region locked.
Yes, they do since Nintendo DS games are not region locked