Of those I can actually remember...

NES - Kung Fu (At a friend's house)
Genesis - Sonic 2
SNES - Super Mario World
Game Boy - Tertris
Virtual Boy - Mario Tennis (On display at Walmart)
N64 - I'm 99% sure it was Goldeneye
PlayStation - Tomb Raider
Dreakcast - Crazy Taxi
TG16 - Bonk's Adventure
PSP - Lumines
NGPC - Metal Slug 1'st Mission
Wii - Wii Sports
Wii-U - Minecraft, for about 5 minutes to test the system. Otherwise Mario Kart 8