Uncharted 2: fighting in the collapsing building and the whole entire train level
God of War III: fighting hercules, Poseidon, & Hades
Killzone 3: Train level, Radec fight
No More Heroes: secret ending battle
Mass Effect: Saren fight
Gear of War 2: can't remember specific parts, but the game was epic
Heavy Rain: madison paige fight with the crazed doctor, every shelby fight(including the gun battle) all of ethan's trials
Red Dead Redemption: the ending, and all the going after ex-friends battles