Kokontouzai Eto Monogatari is a competitive falling-block puzzle game starring two cats, Nyan and Dodonpa, who set out to win cats a place among the animals of the Chinese zodiac. Players clear matching pieces from a vertical well to drop junk blocks on their opponent, and clearing pieces that touch the junk removes it, while special orbs set off larger chain reactions. A story mode works through a series of increasingly fast stages against opponents drawn from the twelve zodiac animals, and one-player and two-player head-to-head modes are also available.