Here is the Wii's Western support for games that can be labeled "hardcore"(My opinion):
THQ(California, United States)
Released
Smackdown vs. RAW 2008(Fighting/Sports)
Worms: A Space Oddity(Strategy/Puzzle)
MX vs. ATV Unleashed(Racing)
In Development
de Blob(Puzzle/Platformer)
Destroy All Humans: Big Willy Unleashed(Action/Adventure)
Deadly Creatures(Action/Adventure)
Battle of the Bands(Rhythm/Music)
Midway (Illinois, United States)
Released
Cruis'n(Racing/Frisbee)
Rampage: Total Destruction(Fighting)
Mortal Kombat: Armageddon(Fighting)
In Development
TNA Impact(Wrestling/Sports)
Blitz 2008(Football/Sports)
Atari (France)
Released
Godzilla: Unleashed(Fighting)
Dragon Ball Z: Budokai Tenkaichi 2(Fighting)
Dragon Ball Z: Budokai Tenkaichi 3(Fighting)
In Development
Alone in the Dark(Adventure)
2K Games (New York, United States)
Released
The Bigs(Baseball/Sports)
MLB Power Pros(Baseball/Sports)
Major Legue Baseball 2K8(Baseball/Sports)
In Development
Top Spin 3(Tennis/Sports)
Civilization Revolution(Simulation/Strategy)
Eidos Interactive (California, United States)
Released
Death Jr. Root of Evil(Action)
Lara Croft Tomb Raider Anniversary(Adventure)
In Development
Monster Lab(Strategy/Action)
Rockstar (New York, United States)
Released
Bully: Scholarship Edition(Action/Sandbox)
Manhunt 2(Action)
Rockstar presents Table Tennis(Ping Pong/Sports)
In Development
????????????????
Ubisoft (France)
Released
Blazing Angels: Squadrons of WWII(Flight/Action)
Driver: Parallel Lines(Action/Sandbox)
Far Cry Vengeance(FPS)
GT Pro Series(Racing)
Monster 4x4 World Circuit(Racing)
Nitrobike(Racing)
No More Heroes(Action/Adventure)
Prince of Persia: Rival Swords(Action/Adventure)
Red Steel(FPS)
Tom Clancy's Splinter Cell Double Agent(Action/Stealth)
In Development
1701 A.D.(Simulation/Strategy)
Alive(Adventure)
Brothers in Arms: Road to Hill 30(FPS)
Prince of Persia Next Gen(Action/Adventure)
Majesco (New Jersey, United States)
Released
Bust a Move Bash(Puzzle)
In Development
Blast Works: Build, Trade and Destroy(2D Horizontal Space Shooter)
Activision (California, United States)
Released
Call of Duty 3(FPS)
Marvel Ultimate Alliance(Action/RPG)
Tony Hawk's Downhill Jam(Skateboarding/Sports)
Tony Hawk's Proving Ground(Skateboarding/Sports)
Guitar Hero III: Legends of Rock(Rhythm/Music)
In Development
Guitar Hero Aerosmith(Rhythm/Music)
James Bond 007(????)
Sierra Entertainment (Washington, United States)
Released
Crash of the Titans(Action/Platformer)
Geometry Wars Galaxies(2D Space Shooter)
The Legend of Spyro(Platformer)
Scarface the World Is Yours(Action/Sandbox)
In Development
Ghostbusters The Videogame(Action/Adventure)
Crave Entertainment (California, United States)
Released
Pinball Hall of Fame The Williams Collection(Puzzle/Pinball)
In Development
????????????????????
Electronic Arts (California, United States)
Released
FIFA Soccer 08(Soccer/Sports)
Madden NFL 07(Football/Sports)
Madden NFL 08(FootballSports)
Medal of Honor Heroes 2(FPS)
Medal of Honor Vanguard(FPS)
NBA Live 08(Basketball/Sports)
Need For Speed Carbon(Racing)
Need For Speed Prostreet(Racing)
SSX Blur(Snowboarding/Sports)
The Godfather Blackhand Edition(Action/Adventure)
The Simpsons Game(Action/Adventure)
Tiger Woods PGA Tour 07(Golf/Sports)
Tiger Woods PGA Tour 08(Golf/Sports)
In Development
Boom Blox(Puzzle)
Facebreaker(Boxing/Sports)
Madden NFL 09(Football/Sports)
NCAA Football 09(Football/Sports)
Need For Speed 2008(Racing)
The Godfather II(Action/Adventure)
Codemasters (United Kingdom)
Released
Heatseeker(Flight/Action)
In Development
Emergency Mayhem(Racing/Action)
LucasArts (California, United States)
Released
LEGO Star Wars The Complete Saga(Action/Adventure)
Thrillville: Off the Rails(Simulation/Amusement Park)
In Development
LEGO Indiana Jones
LEGO Batman
Star Wars The Force Unleashed
Ignition Entertainment (Illinois, United States)
Released
Obscure The Aftermath(Action/Adventure)
Mercury Meltdown Revolution(Puzzle/Action)
In Development
?????????????
Bethesda Softworks (Maryland, United States)
Released
Star Trek Conquest(Strategy)
In Development
??????????????