Tunnel B1 is a sci-fi first person shooter developed by NEON Software and published by Ocean Software in 1996. It features a soundtrack by Chris Hülsbeck of Turrican fame. The PlayStation and Sega Saturn ports were released in Japan as 3D Mission Shooting: Finalist The player character travels through a set of precarious tunnels in a high-tech hovercraft. The tunnels are filled with enemy vehicles, choppers and sentry guns which the player has to take out or avoid. Many sections require the player to clear them in a given time limit. The player can upgrade their weaponry. Source: https://en.wikipedia.org/wiki/Tunnel_B1