The context of the following conversation is Taylor took their shot at seeing if they could get the high score on the game.:
Taylor says I wanted to get a high score on the game so I took my shot..
The friend responds How did you do?.
Taylor responds Not bad.  I have good aim.  I am used to playing games..
The friend responds Do you win prizes?.
Taylor responds If there are prizes involved, yes..
The friend responds You are a big time gamer then?.