Skyrim would be one of them because it definitely has that Morrowind feel to it (one of my personal favorite games back when I was in around 6th grade). Unfortunately the game broke on me in the middle so I gave up. One day, I decided to get Guild Wars at gamestop and I noticed that they had Morrowind goty edition on sale. Only having enough money for one, I decided to get Morrowind goty. Still have it.
Halo Reach I guess because the campaign reminded me a bit of Halo 1's.
Castlevania Lords of Shadow because Super Castlevania IV was my first game. It was also the only 3D Castlevania I ever enjoyed.
Rayman Origins also comes into play because it reminded me how frustrated I got with Rayman 1 back when it was on the Playstation...
Mortal Kombat (new one) makes me remember the good when my old "friends" (1 is in jail) would play the original one back when we were kids.
Getting Super Smash Bros. Melee (2001) along with the gamecube in Christmas was really awesome! Clocked in so many hours into that game. Also Metroid Prime 1 (2002) was just so damn good when it first came out. Didn't know what I was playing, but I loved exploring Talon Overworld.
Metal Gear Solid 4 was just one big nostalgia game.