Two players can play together.
It's standard light gun fare: you're tracked forward on rails while the camera pans around, revealing wave upon wave of horror-themed bad guys to shoot. You've got skeletons, zombies, spiders, rats, and water (yes, there really is water that comes up and tries to get you). At the end of each wave, you can choose from two paths, which is actually pretty cool.
This page contains co-op info for Crypt Killer on the PC Windows [Classics]. All information about Crypt Killer was correct at the time of posting. Information is subject to change. If you see any errors please email us.