Ten-jin the Great
Look familiar to you? I'm not going to tell you..... 8) He lives in the Celestial Realm, and he will give you the ultimate sword of the game, the Prism Sword! Woohoo!
King Gulp
The final boss, and a rather scary one at that! This jerk gets 2 attacks per turn, and they are always the exact same thing! This has got to be the cheapest, most annoying last boss I have ever met!