Yeah, despite having only played about 15% of one MGS game, the “spotted alert” sting from them is still probably the first thing I thought of for this thread.
(Similarly, whilst it’s actually a generic sound from one of those “free sounds” collections originally, the “Doom doors” sound effect is now one of the most recognisable “futuristic door opening” noises in modern culture - probably fighting it out with the Star Trek door noise.)
I think it’s hard to think of the really excellent “foley” style effects in games because if they’re really excellent you can’t distinguish their existence from just being super immersed in the world.
I think that’s probably also why a lot of responses here go heavy on the “sampled voice lines” direction. (For me, that would probably be the C&C Red Alert “Reinforcements have arrived!” sample - the first time you hear it, from my recollection, you’re in the middle of the “lone obviously-James-Bond-inspired pursuit mission” in the early game, chasing a fleeing single enemy (who’s just exploded your starting base)… and just as he’s getting away in a ?boat?, you’re given two attack dogs [heralded by that sample] on the opposite bank. It’s a good moment.)
The runner up voiced line for me would probably be another Icarus line from Deus Ex: unlike Dani, my choice would be
“Observe your motivations for breaking the arbitrary laws of current government.”
, triggered when you, once again, continue the video-gamey habit of just walking into ordinary people’s apartments [this time in Paris] and taking all their stuff.
And if we have to have a great/annoying one: all of the sound effects from First Samurai on the Amiga - the “my sword” sample when his magic sword appears is great, but whoever thought that adding “orchestra hits” sound effects on every connecting strike, and a sample of “Hallelujah” played at very high volume when you achieve a significant point in each level…