Kingdom Hearts 3D: Dream Drop Distance is an action role-playing game developed by Square Enix for the Nintendo 3DS. Part of the Kingdom Hearts series, it follows protagonists Sora and Riku as they undergo the Mark of Mastery exam to become Keyblade Masters. The game introduces the 'Drop' system, which switches between characters as they explore worlds and tame creatures called Dream Eaters. With real-time combat, puzzle-solving, and platforming elements, it continues the series' blend of Disney and Final Fantasy themes.