Puyo Puyo Tsu (ぷよぷよ通 Puyo Puyo Tsū, also known as Puyo Puyo 2, Puyo Puyo Tsuu or Puyo Puyo 2: Tsuu) is the second installment of the Puyo Puyo games; the sequel to Puyo Puyo, made in 1994 by Compile. Compile put more thought into this game after its predecessor became successful, but never knew how much of a turnaround the game would bring. The name of Puyo Puyo Tsu derives from an English pun, as "tsu" (通 tsū, meaning Expert) when spoken aloud sounds similar to the English word "two". Compile continued this pun for Puyo Puyo SUN and Puyo Puyo~n.