SAPPORO -- Hichori Morimoto is always quick with a punchline, but the Hokkaido Nippon Ham Fighters left fielder's latest joke was unscripted and accidental.

Morimoto, easy to pick out in a crowd because of his shaved head, once appeared as a Martian, covering his head in green facepaint and wearing antennae and pointed ears. He isn't afraid to pull a prank.

As fans learned, however, Morimoto isn't the only one walking around Hokkaido with a beaming smile and a shiny cranium.