Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @Rainbow6Game felt guilt from playing this game. #horrible #RainbowSixSiege
This tweet contains emotions: 
disgust, sadness