This video is "starring" one of the characters of the PC-Game Team Fortress 2.
The Pyro is perhaps one of the most hated, and one of the most mysterious classes in TF2.
Because he wears a full-body-suit, nobody knows WHO he really is. Or if the pyro really is male.
There are rumors that this could maybe be a female character.
This video now is a bit sad.
But the editing is awesome. So even if you don´t know the game, I recommend watching.