there is an extended ending that is unlocked by playing the game without continuing but from what i saw there was nothing different, could you compare it with the normal ending if you use a continue?
Samurai Shodown is also released on Neo Geo X, Mini Neo Geo, Super Nintendo, Megadrive, 3DO, Mega-CD, Game Boy, Game Gear, japanese PlayStation, PlayStation 2, Wii, PSP. (in the compilation Samurai Shodown Anthology)
lol, Haomaru's ending is a jokey reference to the old Musashi movies with Toshiro Mifune. He rejects "Oshizu" instead of "Otsu" because of his manly code... And then he goes to hang out with Mai.