Expert is an action game developed and published by Nihon Bussan for the PlayStation. It was released in Japan in 1996. The game features 2D graphics and gameplay similar to the previous Nihon Bussan game, The Ninja Warriors. The game's story follows a group of soldiers who are sent to a secret laboratory to stop a mad scientist from creating a new type of weapon. The game features a variety of weapons and power-ups, as well as a two-player mode.