What was the longest and hardest game you played?

[Hawk]

Longest time playing a game would be Mario Kart 64 followed by Oblivion. My friends and I spent an obscene amount of time on Mario Kart 64.

Hardest, I would say 7th Saga. Been too long since I've played it, I don't remember why. But It's stuck in my mind as the hardest game I've played.