WTM it's not a Marx stamp?!?! XD
I randomly did a nightmare orb stamp for fun. It's my second-favorite boss in a Kirby game, the first of course being Marx. He's from Kirby's Adventure, but I think this sprite's from Nightmare in Dreamland. ^^
Kirby's Adventure is on my top five favorite Kirby games. And it's prolly on my top fav (all) games list too.