That List Sucks!!!!
Only two games deserve to be there, Outrun and Elite
Off the top of my head, the most influential games have been:
Super Mario Bros. (every platformer since this game has used it as a template)
Super Mario Kart (invented a new genre, with ease. that was ****ing rare in the mid 90s, and even more so now)
Yie Ar Kung Fu
IK+
Gran Turismo
Virtua Fighter (reinvented and rejuvenated the 1 on 1 beat em up genre)
Sensible World of Soccer (actually any Sensible Software should go on this list, like Cannon Fodder)
FIFA International Soccer (started the licensing craze)
Green Beret
Double Dragon
WipeOUT (in my opinion, this is the game that killed the Sega Saturn in Europe. Deserves to be on the list because of that)
The Great Escape (this used stealth while Hideo Kojima was still jacking off to tentacle porn in his parents basement. They do have basements over there in Japan, right?)
Championship Manager (stats, stats and more stats. Theres a football game in there too, but I have yet to find it)
Half-Life (had to make the list, **** DOOM. I never played DOOM during its original run. Run and Gun games are so ****ing lame. Got this game when I first got a PC back in 2000. Was ****ing blown away by the graphics. Then I relised I was playing in Software Mode

Anyways, every single FPS, including Deus EX, have at least 'borrowed' a few of Valve Software's ideas.)
Most games of today, owe their exsistence to the above titles
In terms of being a real killer app, in my opinion, only Gran Turismo qualifies for that title. Basically told every other race 'em up to go **** themselves when it first came about on the PS1. Now every other racing game tries its damn hardest to copy it. Instead of Polyphony/SONY having to pay manufacturers to put their cars in there, its rumoured that some of them actually now pay SONY to stick their cars in there. Thats how big that game is. Genuine mainstream appeal too. Unlike 99% of the crap out there. How XboX fanboys put MSR/PGR over it I dont know. Get a clue. Special mentions for Yie Ar Kung Fu, IK+ and Way of the Exploding Fist. Streetfighter II stole all their ideas
Could throw a few more titles on there, but **** that ****. Also, notice no RPG or RTS or other beardfest genres make the list? I have a life. I enjoy it.