The player character takes control of a human being who joins a community of animals in the Forest of Happiness. After they spent many months trying to fit in, a boxing gym opens, and all of the Forest's residents, along with their new human guest, begin training for the sport in a scramble for pugilistic supremacy.[5][6] Working from the bottom, the player character challenges and defeats many animals to earn twenty-four belts, eight in each of three classes, to become the best boxer among them all. Amazed at their strength, the animals finally regard them as a friend.[7]

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