I'm working on a project for GG where I need a list of games that were at E3... there were a lot of games. 
And this is just the list I came up with. I'm sure there are plenty more.
MW3
Tomb Raider
Madden
FIFA 12
Future Solider
360 Dashboard
Gears of War 3
Ryse
Halo Anniversary
Forza 4
Disneyland Adventures
Kinect Fun Labs
Seasene Street Kinect
Star Wars Kinect
Kinect SPorts Season 2
Dance Central 2
Halo 4
Mass Effect 3
Need for Speed: The Run
Star Wars The Old Republic
SSX
OverStrike
Battlefield 3
Rayman Origins
Driver San Francisco
Far Cry 3
Brothers in Arms Furius Four
TinTin
Raving Rabbids Alive and Kickin
Just Dance 3
Rocksmith
Your SHape Fitness
Assassin's Creed: Revelations
Uncharted 3
Resistance 3
God of War Origins
NBA2K12
medieval Moves
Infamous 2
Bioshock Infinite
PS Vita
Uncharted Golden Abyss
ModNation
LittleBigPlanet Vita
Street Fighter X Tekken
Zelda Ocarina of Time 3Ds
Zelda Skyward Sword
Mario Kart 3DS
Star Fox 3DS
Super Mario 3DS
Kid ICarus 3DS
Luigi's Mansion 2
Wii U
Zelda HD Demo
Chase Mii
Animal Crossing 3DS
Paper Mario 3DS
MGS Sanke Eater 3DS
Resident Evil Revelations
Kirby Wii
Mairo Party 9
Metro: Last Light
Sonic Generations
Dead Island
Elder Scrolls V: Skyrim
Hitman Absolution
Prey 2
Prototype
Rage
Twisted Metal
Journey
Sly Cooper
Disney Universe
Payday: THe Heist
Batman: Arkham City
XCOM
Star Trek
Final Fantasy XIII-2
Saints Row: The Third
Ninja Gaiden III
And this is just the list I came up with. I'm sure there are plenty more. MW3
Tomb Raider
Madden
FIFA 12
Future Solider
360 Dashboard
Gears of War 3
Ryse
Halo Anniversary
Forza 4
Disneyland Adventures
Kinect Fun Labs
Seasene Street Kinect
Star Wars Kinect
Kinect SPorts Season 2
Dance Central 2
Halo 4
Mass Effect 3
Need for Speed: The Run
Star Wars The Old Republic
SSX
OverStrike
Battlefield 3
Rayman Origins
Driver San Francisco
Far Cry 3
Brothers in Arms Furius Four
TinTin
Raving Rabbids Alive and Kickin
Just Dance 3
Rocksmith
Your SHape Fitness
Assassin's Creed: Revelations
Uncharted 3
Resistance 3
God of War Origins
NBA2K12
medieval Moves
Infamous 2
Bioshock Infinite
PS Vita
Uncharted Golden Abyss
ModNation
LittleBigPlanet Vita
Street Fighter X Tekken
Zelda Ocarina of Time 3Ds
Zelda Skyward Sword
Mario Kart 3DS
Star Fox 3DS
Super Mario 3DS
Kid ICarus 3DS
Luigi's Mansion 2
Wii U
Zelda HD Demo
Chase Mii
Animal Crossing 3DS
Paper Mario 3DS
MGS Sanke Eater 3DS
Resident Evil Revelations
Kirby Wii
Mairo Party 9
Metro: Last Light
Sonic Generations
Dead Island
Elder Scrolls V: Skyrim
Hitman Absolution
Prey 2
Prototype
Rage
Twisted Metal
Journey
Sly Cooper
Disney Universe
Payday: THe Heist
Batman: Arkham City
XCOM
Star Trek
Final Fantasy XIII-2
Saints Row: The Third
Ninja Gaiden III
