Are there any Japanese Wii games tha can be played on U.S. Wiis?

[SoupCamera]

Are there any Japanese Wii games tha can be played on U.S. Wiis? Where can I find more info about this?

Come to think of it, does Nintendo even lock the Wii for
each region?(US, Asia, EU, Japan, for example)

Thanks!

 

[Kamikaze]

All the Wii's are region locked, there was a heavy rumor being pushed around that it had been region free, but Nintendo had cleared up that rumor with an interview. Only region free systems happen to be the handheld.