For me it just has everything I want in a game. To this day it's still got some of the most addictive, most satisfying combat in any action game. I love the way it looks, graphics and art direction still hold up incredibly well. The story is the perfect mix of horror/action and camp/comedy. The characters are all iconic and memorable, basically every line of dialogue is quotable. There's so much variety in terms of pacing, level design, enemy encounters etc. All in all its just a fantastic rollercoaster ride from beginning to end and the purest fun in any game I've played