Most obsessive compulsive thing you've done in a game?

For me: Castlevania Aria of Sorrow. Every armor, every weapon, every soul + chaos ring. Multiple 100% (souls) playthroughs Also got my links hit the target score down to 5 and a half seconds in melee My Sister on the other hand plays pokemon snap to an extreme. She has perfect scores on (maybe) most pokemon in the game and has even glitched a bunch of rapidash with apples!

Falling asleep on a game while trying to play at the same time. Usually running into walls or ojects endlessly with the W key ( and friends I'm playing with standing and watching asking ' What are you doing? ' until I snap awake and stop pressing the W key. LOL then I go HOLY SHIT I fell asleep. LAWL. Sometimes I run in the wrong direction then they have to chase me down and go ' ITS NOT THAT WAYYYY ' LOOOOL. Oh man when i fall asleep at League unless I'm in a CALL do I ever wake up right away cause they'll tell me ' WHAT ARE YOU DOING!!?!?!' LOL Usually if not though, I fall asleep and stay standing in one area then get rekted by the enemy team or SOMETIMES asleep and keep clicking and move directly into the enemies territory and they just go ' WTF IS SHE DOING? ' LAWL Man It's so funny. But yeah I often when really tired fall asleep while playing games. I think apart of me likes the reactions I get from my friends. They usually can't believe I fell asleep. XD;

Not sure if this counts as compulsive but, when I get a game I usually play it all day till night,or at least until I've beat it.

Sure it does. My current thing is collecting all the cards in triple triad from ff8