The First 15 Minutes of Quake II (PlayStation)

Copied from MobyGames:

A sequel in name only, this follow up to id's 1996 Quake is a first-person shooter revolving around the Earth-Strogg war. The Strogg alien race threatens the Earth, but Earth has launched a counter-offensive, Operation Alien Overlord. Overlord takes the battle to the Strogg homeworld with the ultimate objective of securing their capital city and killing their ruler.

As a FPS, Quake II contains a variety of weapons including the fall back Blaster, the Railgun, and the secret BFG10K. Health, armor, and ammunition pick-ups can be found during levels, as can the classic Quake’s Quad Damage power-up. Game play involves mowing down alien opponents as the player progresses through levels, completing in-game objectives. Quake II also comes with multiplayer support for Deathmatches.