Treasure

Treasure is a company who made Wario World for the Nintendo GameCube. Treasure never worked on any other Wario game, and is not planning on making a sequel for the game because it was not very popular, although it became one of the company's best-selling games. They have also never done any other Mario game, besides Wario World. However, they have done many other games such as Sin and Punishment and Gunstar Heroes, which are now downloadable on Virtual Console.