Are we talking trophies? Because the most i've done is like 50% in BioShock, lol.

I will be attempting my first platinum with No no Kuni though.

Nah because that usually forces me to go out of my way. I play games until I'm no longer having fun or feel like I've done everything I want to.

I do try and 100% the games I play. By that, I mean finding and completing all the content available in the game. Occasionally I will come across something that is too hard, and I will eventually give up on it. An example of that would be Super Smash Bros. Brawl. I never opened all the doors on that challenge board thing. I did the vast majority of them, but the last 10 or 20 were hard enough that I didn't feel bad giving up on those.

The games I play generally do not have achievements or trophies, so I don't care about that.

NEVER!

Regardless of the type of game.

I play til I feel like being done.

The closest I ever did to 100% was World of Warcraft before the first expansion came out years ago.

Only 3D Mario games.

As long as there is no shady or tedious online trophies/acheivements or (side)challenges(Warhawk, MAG, and Battlefield: Bad company, I'm looking at you), I pretty much always plan on to complete my games 100%.

No, I don't have the time nor the will to do that.  The game has to be really really good.  In recent memory I've only done it in MGS4.

I like to do challenges if they are within reasonable reach, but too often getting 100% is beyond what the game is worth playing. At that point it is no longer about enjoying the game - simply doing it for completion sake.

I feel compelled to because I grew up in the 80's and back then, there was only one goal...beat the game. The difference between beating the game then and now is, beating most games was a monumental task of epic proportions. If you beat Ninja Gaiden? That was harder than getting 100% in most games these days san Super Meat Boy which, ironically, was developed by two guys who are my age and wanted to make a game like the games they grew up on.

Only if I think a game' worth it, or if the tasks one needs to do to get 100% aren't pointless. More often than not, the story is enough. I don't go doing mundane tasks to complete some kind of trophy, but I do usually try to do most if not all side quests.

I usually play through a game once without worrying about scores, and then after I'm done I check out the trophy list to see if getting a platinum is feasible. Some games are (it looks like Battlefield 4 is an attainable platinum and I might go for it) while other games are not (the online trophies for Assassins Creed 4 seem far out of reach)