Video gaming sound

i recorded one of my flatmates playing an aggressive fight scene in a video game 'Grand Theft Auto'. You can hear the characters interacting through the speakers and the fast, hard clicking of the controller buttons which are key note sound, unconsciously the listener already will know that they are hearing someone play a video game. But what I found most interesting in this sound clip was that you can hear him sniffling because he had a cold. This can be heard clearly and I hadn't realised my flatmate even had a cold before listening back to the recording, so the sound of his sniffing acted as a signal of an element of the environment, the gamer himself.

https://soundcloud.com/user-35970585/video-gaming-sound-1