US Games Working on Japanese Xbox 360s

We have great News for you about US Games working on the Japanese Xbox 360, as you know sites have already commented about US Games working on Euro Xbox 360s and vice versa, Heres a list of working and Non Working US Games for the Japanese Xbox 360

US Games that Work On Jap Xbox360

Quake 4
Call of Duty 2
Condemned

US Games that are Not Working On Jap Xbox360

Project Gotham Racing 3
Kameo
Perfect Dark: Zero

More as we get more feedback from our Japanese sources.