Half-life 2

Half-life 2 an extremely popular shoot ‘em up released in 2004 had a possible achievement on steam called Little Rocket Man which you have to pick up a gnome from the radio room and carry it all the way to the white forest rocket base. This was vastly more difficult than it sounds because you could not just put the gnome in your inventory, you had to actually carry it which means that it is forever bobbing up and down in front of you and you can’t do things that need two hands like driving a car so you have to put the gnome in the car and it keeps falling out and it can get quite annoying (or so I am told).

Half-life 2

A similar achievement is available in the later game Left 4 Dead 2 also published by Valve Software.  The same gnome, known as Gnome Chompski  (Noam Chomsky being a reasonably famous American academic) can be won at the fairground and if the player escapes in the helicopter at the end of the level with the gnome they get the Guardin’ Gnome achievement.