The kid was a character in the TF2 Sissmas comic. The reason why he has different hair styles is because Soldier gives him a buzzcut for Sissmas instead of the toys he asked for.
It's from the game Undertale where the first song is one of the skeletons' theme, and the second is battlemusic that starts when you fight one of the other skeletons in the game.
Seeing this makes me think of all the skeletons in Fallout 4. There's something wrong with their collision boxes or some such.
Because occasionally, when you first enter the cell with them in it, they will be moving. Not like, walking around, but like their heads will turn and **** .
Spoopy / 10. - Game of the Year.