My vote is for HL2: Episode 1's 'The One Free Bullet'. You only get to fire one bullet throughout the entire game, to knock off a padlock (Rockets, crossbow bolts, grenades, energy balls, physics objects, etc. are fine though). Runner up is 'Little Rocket Man', from HL2: Episode 2, where you must carry a garden gnome through the entire game and deposit it in the missile at the end.
So, what are your candidates? (Note: Grind achievements like dealing one million damage points and so on don't count, because they're not really hard, they just take an ungodly amount of time.)
So, what are your candidates? (Note: Grind achievements like dealing one million damage points and so on don't count, because they're not really hard, they just take an ungodly amount of time.)