have there ever been any region free xbox games?

i'm on the verge of hitting the BUY button for wreckless 2 but as of now have no way to play it. have there ever been any region free XB games?
Same question, is there are any Japanese games that's region free?
I'm only know that the Ninja Gaiden and Phantom Dust Famitsu demo discs are.

It's funny how a lot of US games these days are region-free, and it isn't with Japan. Jeez, do they really want us to buy the Japanese unit that bad? :lol
List of confirmed Region Free Xbox Games:

American McGee's Scrapland
Brothers In Arms
Cabela's Deer Hunt 2005
Call of Duty: Finest Hour
Capcom Fighting Evolution
Forza MotorSport
Ghost Recon 2
Greg Hastings' Tournament Paintball
Halo 2
Iron Phoenix
Jade Empire
Mech Assault
Mech Assault 2
Prince of Persia 2 : Warrior Within
Return to Castle Wolfenstein
Rainbow Six 3
Rainbow Six 3: Black Arrow
Rallisport Challenge 2
Splinter Cell : Chaos Theory
Splinter Cell : Pandora Tomorrow
Star Wars Battlefront
Steel Batallion: LOC
Street Fighter Anniversary Collection
Tron 2.0 Killer App
Unreal Championship
Unreal Championship 2
Vietcong: Purple Haze
X-Men Legends
Is that between NTSC territories? I know the developers of phantom dust wanted to release it as multi region but at the last minute they got told to region lock the japanese release.