Split-screen's been said.
Another though is Call of Duty-esque games.
I love Call of Duty. I play it a lot. My favorite is still UO. No minimap, no ridiculous knifing, no idiotic perks or unlockable weapons, not even an indication for bullet impact against your enemy. Just the player, a gun, and a bunch of people running around in Nazi uniforms to shoot. It remains one of the most fluid games available.
But GoldenEye killed it for me. God fucking dammit. I hate what a bunch of people trying to cash in on Call of Duty's success did to that game. I wanted stupid fun where karate chopping midgets ran around with an arsenal of weapons on their back.
"Gee, should I kill that guy with the watch laser, the klobb, or maybe I'll throw a remote mine on him." Oh wait, I can't because I can only carry generic weapons A or generic weapon B.
"Shit, that guy just shot me. Wait, after thinking it over for a few seconds behind this crate, I suddenly feel a second wind. My wounds are healing as if Jesus Christ himself granted me his powers." Nevermind, that's some ***** ass health regeneration.
"I really am enjoying this round we're playing in Facility -oh my mistake- I'm really enjoying this round in Gas Tanks and Ladders."