Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @715d1\nI bought the Steam port of Vice City, and to my delight Billie Jean is on the soundtrack!
This tweet contains emotions: 
joy