Adventure Time creator Pendleton Ward and developer WayForward have been quite clear about their influences, and the resulting love letter to The Legend of Zelda is starting to look pretty sweet and or math.
You can definitely feel the Zelda love here, but WayForward has also name-dropped Castlevania in the past.
Adventure Time: Hey Ice King! Why'd You Steal Our Garbage?! arrives on DS and 3DS in October - complete with interrobang.