I may continue adding to this but for now I think this is good enough.
  1. Yoshi's Island: Super Mario World 2
    Cute and colorful but also challenging. The pacing and level design is superb. There are only fond memories with this game.
  2. Oddworld Abe's Odyssey
    Got it when I was a child and it scared me to death. It is a very morbid game with a lot of challenge. There are two endings to it and it first game I played that had the option for multiple endings. Overall this is and underrated sidescrolling Classic.
  3. Metal Gear Solid 3 Snake Eater
    This is the best metal gear period. Sure the 5th one is amazing I'm sure (I have not played it yet) but this one is completely awesome. The stealth elements are amazing and the game play is fun and overwhelmingly tough. Big boss is the coolest badass in all of gaming so it is a must play just because of that.
  4. Mario Superstar Baseball
    Some may be confused but I assure you this game is the best on this list. You just need some one to play it with (and some knowledge/respect for baseball) and it will become evident. The controls on this game are so simple but so is intuitive and it makes it easy to learn but hard to master.
  5. Legend of Zelda Wind Waker
    I always thought Zelda was a good game serious but I only like link to the past...that is until this came out. I love the visuals to death and the exploration component of this game made it truly feel like a world. That pretty much sold me out on it.
  6. Shadow of the Colossus
    Best single player experience ever? It is about as good as they come. Also the story is heartbreaking and the visuals and sounds are some of my favorite in gaming history.
  7. Silent Hill
    Even though I know this game like the back of my hand it still scares me a little. Just a little...
  8. Final Fantasy 9
  9. Soul Calibur 2
  10. Mortal Kombat 3 Ultimate
  11. Gran Turismo 4
  12. Wario's Woods
  13. Alien Hominid
  14. Time Splitters 2
  15. Fire Emblem Awakening
  16. Super Smash Bros. Melee (or the new wii u one)
  17. Goldeneye 007
  18. Mega Man X
  19. Ninja Gaiden 2 (for the NES)
  20. Star Wars Battlefront 2
  21. Uncharted 2
  22. Demon's Souls
  23. Mario Kart (I can't decide on which one)
  24. Resident Evil 4
  25. Tetris
  26. Grand Theft Auto 5
  27. Gauntlet Dark Legacy
  28. Super Mario Bros. 3
  29. Journey
  30. Super Mario Sunshine
  31. Contra
  32. Ms. Pac Man
  33. Smash TV
  34. Wii Sports
  35. God Hand
  36. Shinobi (ps2 version)
    Ok before you get mad play the game. The story and voice is some of the worst but the game play is really good. The only bad thing is the camera.
  37. Wolfenstein
  38. Doom