Template:Company-infobox GungHo Online Entertainment is a video game developer in Tokyo, Japan, that was founded in 1998. It is best known for hosting the Japanese server of Ragnarok Online, the development of Ragarok DS for the Nintendo DS, as well as the mobile game Puzzle & Dragons. They developed a spin-off game of Puzzle & Dragons based on the Super Mario Bros. series, Puzzle & Dragons: Super Mario Bros. Edition.