Zogen*

Players take on the role of researchers aiming to get rid of their microorganism cards quickly. Each player starts with a sheet of sixteen cards featuring different types of microorganisms named "Maru," "Tsuki," "Yama," and "Siri." During each round, players play cards that differ by exactly one microorganism from the starting card, calling out the microorganism added or removed, with the round ending when a player has three cards left. The player with the most points after the agreed number of rounds wins.