Halo: Kill those aliens...and those too...and those robots too.
Halo2: Why can't we be friends?
Halo 3: Scarabs are destructible
Halo Wars: New point of view!
(I'm a Halo fan)
Old Destiny Warriors games: Swordfights in Feudal Japan
Old Gundam games: Swordfights in robots
DW:G : FUSION!
L4D:Call for rescue, Be ready to fight off the horde.
RE5: Can't you just DIE ALREADY???
FEAR: It's a big ol' family business
FEAR EP: "You killed me...I didn't like that."
FEAR PM: I hate the assasins, and the black spots, and the red eyed ones, and the jumpy moments!
FEAR2: What happens in the Telesthetic Chamber, STAYS in the Telesthetic Chamber.
Guitar Hero: play some songs
GH2: play some (more) songs
GH3: Boss fighting songs
GHWT: We swear we didn't copy Rock Band on this one.
Team Fortress2: I am Fully Charged!
Half-Life: stop the aliens from escaping the facility.
HL2: "The right man in the wrong place can make all the difference in the world, so wake up, Doctor Freeman, wake up and smell the ashes."
HL2Ep1: "Is Doctor Kleiner telling everyone to...Get busy???"
HL2Ep2: "Well that's good, because, now that the suppresion field is down, we've all got to do our...part."
Portal: "So I'm GLaD I got burned, think of all the things we learned, for the people who are Still Alive."
WoW: "You've been AFK far too long."
Silent Hill: One of these Silent Hills is not like the others.
AC6: surviving as an online game since 2008.
FF: no matter how emo you look, you can still get critical damage.
EVE online: Please wait for skill/mining/traveling.
Mario Party 3: It's never too early to teach kids to be aggressively competiive.
Mario Kart 64: God Mode is only available for the CPU.
The Legend of Zelda: It's either Ganon, or someone else.
Starfox 64: "Father???"