Background: In the near future, mankind has conquered the universe. The shields of a Mars-orbiting space station have been damaged by asteroids, and the A.I. repair bots have malfunctioned. Help astronaut Aki-chan repair the shields by placing triangle blocks to form lines vertically, horizontally, and diagonally. SankakkuDoku! is a fun, exciting, and engaging block-matching puzzle game. Your goal is to place and combine groups of triangle blocks to create and clear lines in all directions; vertically, horizontally, and diagonally. Clear multiple lines at once to earn combo scores! Connect, combine, and match triangle-shaped blocks to test your skills in this addicting and challenging puzzle game. SankakkuDoku! is the ultimate brain teaser designed to test and train your mind. Four different game modes ★ Integrated daily rewards. ★ Professional sound effects and background music. ★ Rotate and flip groups of triangle blocks. ★ Nintendo Switch™ online leaderboard.