It's about making weather forecasts. With a good forecast, players can climb their frog up the ladder. The game ends as soon as a player manages to reach or surpass the top of the ladder with his frog or, if no player manages to do so, when all 32 sky maps have been turned over. The winner is then the player whose frog is the highest on the ladder.
Contents of the box : 1 game stand (50x66 cm), 1 rooster, 4 frogs, 16 barometric tokens, 36 time cards, 1 game rule.