We hope you've enjoyed wreaking havoc within the National Videogame Museum!
For those of you who have found the secret exit, you may have encountered a bug where the game sends you to MAP02 of Doom 2, opposed to the Atari Office's. This was due to an issue with the way the PK3 Mapinfo file was setup, and has been corrected.
In order to experience the secret "Atari Office" level, please download v1.1 of NVMDoom, available here:
Rip and Tear!