1. Metroid Prime 2: Echoes (Game Cube)
A great game with many areas to visit and explore. You progress through battles and unlock new beams and sphere powers it gives you access to doors that you have seen but could not go through earlier. That is a fun frustration. Remembering where things are is a challenge, and some of the boss battles :cough: Chykka battle :cough: are very, very tough. Truth be told, back in the day I used Game Shark to progress, but even confessing that, this is still an incredible game worth watching youtube videos to try and beat the bosses and complete this great game.
Now, as I finish this I can think of games like one of the Ratchet and Clank games, Halo 3 or 4, Oblivion or Skyrim, Lost Vikings, etc, etc. Which games would you have included on you Top 10 list?