Nope. I can't play the same game over and over and over, within a certain timeframe. I can play the same game maybe a few months after i've played it. This is probably why i rarely ever play online multiplayer aspects of most games.

Links awakening is the game I've played the most times and can beat it pretty quickly. Some others I played enough to master are tony hawk pro skater 2-4, halo 2, most every Mario kart and pokemon. That's right, I'm a pokemon master!

The first Paper Mario. I completed that game more than 5 times.

Midnight Club 2: I've played it through 3 times + casual sessions. At the 2nd time, I did it with the best car of every previous city (Citi through the entire LA, Jersey through the entire Paris and Modo Prego through the entire Tokyo). People that played the game can understand how hard it is to win the last races in Tokyo with Modo Prego. I really mastered the game at that time... not anymore :)