Commodore

Master Lock was a program used to protect your software creations.
Claimed that your software then could not be copied by Nibblers, Disk Maker, Copy II, Ultra Byte or Fast Hackem.

The Hitchhikers Guide to the Galaxy

Most Infocom games contained feelies, bonus novelty items included to enhance the immersiveness of the game. The feelies provided with this game included:

- A pin-on button with Dont Panic! printed in large, friendly letters
- A small plastic packet containing pocket fluff (a cottonball)
- Order for destruction of Arthur Dents house
- Order for destruction of Earth written in Vogon (actually an English cryptogram written in a thinly-disguised Greek alphabet. The text was nearly identical to that of the English Order for Destruction)
- Official Microscopic Space Fleet (an empty plastic bag)
- Peril Sensitive Sunglasses (a pair of opaque black cardboard sunglasses)
- How Many Times Has This Happened to You?, an advertising brochure for the fictional guidebook/encyclopedia The Hitchhikers Guide to the Galaxy

Tristar and Red Sector Incorporated, Inc. (también conocido como TRSI) Es un grupo warez que fue formado de dos grupos warez antiguos Tristar y Red Sector Incorporated. En 1990 agrietaron juegos de Commodore 64 . Pero luego TRSI Emigró del Commodore 64 al Amiga e IBM-PC En 2003, TRSI quedó inactivo