Kappa is a minor character in Harvest Moon 64. The Kappa is a type of water sprite living in the pond by the fisherman's tent. If you throw a fish into the pond between the hours of 9am-5pm he will come up and give you a Power Berry. * If you throw in a large fish, he will give you a Power Berry. * If you throw in a small/medium fish he will give you a Blue Power Berry.