Why not... 5.Assassin,s Creed 4.Halo trial (modding power XD) or halo 2 (for bloodgulch) 3.Call Of Duty 4 4.Oblivion GOTY edition 5.Halo 3
1. Grand Theft Auto IV 2. TES IV: Oblivion 3. Ratchet & Clank 3: Up Your Arsenal 4. Halo CE 5. Half-Life 2
1.) Tetris DS 2.) The Legend of Zelda: A Link to the Past 3.) Super Metroid 4.) Unreal Tournament (the first one, since it was the only good one) 5.) Tony Hawk's Pro Skater 2 Tough list to compound. The first two were easy, but after that, it was a real chore to pick from such a massive catalog of games (I own so hundreds of 'em). I'm so old school, apparently.
I find UT2004 and UT3 great, although it's basically the same games with new graphics and vehicles, it still adds enough content each time to mae the experience enjoyable.
I tried to love UT 2004, but there was just something about it that felt off. In the end, it just couldn't hang, and I've clocked in a grand total of about four hours into it. That's less time than I put into playing and replaying the single player in the original. As for UT3, I was in the beta for it, and while it does feel a bit more like the original, it just isn't quite at that level. Unless they made a few good changes since then, I can wait for it to hit bargain bins. I do, after all, still have my beloved copy of UT GOTYE and several friends who don't mind playing it every so often.