Odama Cheats (GameCube)

At the final stage, Karasuma Keep, you must knock the Odama through the main gates. This
will lead you to a secret stage which is looking like modern-day Kyoto! There's the
Nintendo of Japan Headquarters. A Heavenly Odama will come down so  you can knock around
Nintendo employees and use them in the final battle. To exit, let the Odama roll into the
gutter.

Finish the game to unlock free play mode.