Pyramid Intruder is a rail shooter game originally released for 3DO. Featuring full-motion video sequences from laserdisc, the game updates its mechanics by shifting from a first-person viewpoint to a third-person perspective, allowing players to dodge enemies more effectively. Additionally, it introduces new real-time 3D levels that enhance gameplay between the original stages.
Pyramid Patrol is a very traditional FMV-based rail shooter. The player's ship and small enemies are sprites, while the stages are presented using full-screen FMV stored as laserdisc video. Pyramid Intruder, the 3DO port, improves on the original game by switching from a first-person perspective to a behind-the-ship view in order to make it possible to dodge enemies; it also adds new realtime 3D levels in between the original levels.