Multiplayer action games for Xbox 360 with 2-player support

Blazing Angels: Squadrons of WWII

Players: 2 local, 4 online

Inversion

Players: 0 local, 2 online

Golden Axe

Players: 2 local, 2 online

Arkadian Warriors

Players: 2 local, 2 online

Bionic Commando: Rearmed 2

Players: 2 local, 0 online

Monsters vs. Aliens

Players: 2 local, 0 online

Hellboy: The Science of Evil

Players: 2 local, 2 online

Matt Hazard: Blood Bath and Beyond

Players: 2 local, 0 online

Monster Madness: Battle For Suburbia

Players: 2 local, 2 online

Omega Five

Players: 2 local, 0 online

Pirates of the Carribean: At World's End

Players: 2 local, 0 online

Samurai Warriors 2: Empires

Players: 2 local, 0 online

Dynasty Warriors: GUNDAM

Players: 2 local, 0 online

Damnation

Players: 2 local, 2 online

Super Contra

Players: 2 local, 2 online

Rocketmen: Axis of Evil

Players: 4 local, 4 online

Yar's Revenge

Players: 2 local, 0 online

Attack of the Movies 3D

Players: 4 local, 0 online

Warhammer 40,000: Space Marine

Players: 0 local, 4 online

Metal Slug XX

Players: 2 local, 2 online

Eragon

Players: 2 local, 0 online

Root Beer Tapper

Players: 0 local, 2 online

R-Type Dimensions

Players: 2 local, 2 online

Star Trek: D-A-C

Players: 0 local, 6 online

Robotron

Players: 2 local, 2 online