[ku-] Koopa Troopa is [2] inside the [-(e)i] beach house by the bay where he is the 魁 leader of a bunch of 鬼 ghosts. Why? Because he recently found a sacred 斗 measuring cup earlier that day in the sand outside on the beach, which has made him the 魁 leader of a bunch of 鬼 ghosts who follow anyone who possesses the cup. The problem is that Koopa is scared of 鬼 ghosts, so despite being 魁 leader of them he hides in his shell there inside the beach house, afraid to come out.