Hard Mode : TF2 and Garry's Mod doesn't count I'm stuck in Nuclear Throne. So basically I live for twenty minutes and then die to a maggot :^)
By stuck do you mean that we have to play it forever? Also, I don't mind sniping Nazis from WW2 in Sniper Elite 3
If you count mobile games then I'm stuck I madden mobile beating ai 20+ to 0. If not then I'm stuck in CS:GO being rekt to the Unteenth power.
I would be the main character in mass effect 2 or 3 because I could decide who I wanted to bang each time I replayed :3