Metal gear solid 4. One of the most epic moments is taking the disabled Metal gear REX.
In metal gear solid 1, REX was the end boss, kinda ironic
But you had to run out of the collapsing REX hangar shooting Gekko's on the way. Armed with 2 30mm GAU8's, AT missiles and a Short range Laser.During that Escape i was like=THIS IS SO AWESOME.IMAGINE if you could fight other Metal gears! Like Ray!
So i kinda like, RUn out off the hangar..
one of the most epic boss fights ever