Puzzle Series Vol. 4 is a new game from Japanese game developer Nintendo. The game is set in a future where the world is ruled by a jellyfish-like creature called the Kakuro. You are a high school student, tasked with helping to restore the economy by finding and removing the last pieces of the Kakuro before they can eat. Along the way, you must master your own quickdraws and- as the game progresses- you will also need to defeat other players' pieces in a final game. This fourth game in the Puzzle Series is a little more action-packed than the other three games in the series, with you playing as one of several characters who must help restore the economy to its former robustness. You will need to master quickdraws, as the game progresses, in order to complete games on the last few stages. As the game progresses, other players' pieces will become available for you to play through, and the final game is a little more challenging than the others.