Tweek is a professional Smash 4 smasher who mains Cloud and formerly Bowser Jr.. He is widely considered to have had the most successful Bowser Jr. before he stopped maining him when Cloud was released. He is currently considered to be one of the best Cloud players in the world (along with MkLeo, Komorikiri, and Mew2King), having beaten top professionals such as Nairo, MkLeo, Dabuz, Larry Lurr, komorikiri, ANTi, VoiD, Ranai, and Marss.
On February 28th, 2016, Tweek announced that he would no longer be using Bowser Jr. in tournament play, as he felt the character was not a suitable choice in becoming the best Smash 4 player. Despite no longer maining the character, there had not been any other smashers who had come to match the results of Tweek's Bowser Jr., with smashers like ZeRo believing that Tweek remains the strongest Bowser Jr. player to date.
On February 10th, 2017 it was announced that Tweek was signed by Phoenix1. This makes him the first player from outside of League of Legends to join the organization.