Good Bad Bugs/Video Games

Most examples of Good Bad Bugs in Video Games are listed on subpages:

These examples need sorting:

There was an online Martian Rover Sim in 3D, which had been designed as part of the mission's publicity. The Sim was designed to show how the rover would move and collect samples. It also had some speed settings which, instead of speeding up the whole animation, increased the speed of the rover, allowing some really stupid stunts. You could take the rover to the edge of the map, where there was a small wall, climb it, and head out into the wide red yonder, which caused the rover to drive upside down through the air, among other things... Not bad for an educational resource!
Family Feud on the SNES was very buggy in terms of what it would accept as the correct answer. The game usually just checks if the first few letters of your answer matches any answer on the board or if they're in the same order regardless of what other letters are between them, so sometimes entering gibberish, swear words, or just about anything else could match something on the board even if your typed response is way off the mark. Milked for all it's worth in this TAS.
In Grand Theft Auto, pressing the horn button while on foot would make the player character fart and belch. This action can still be done if the player is killed.
Nearly forgotten on this date, but the original Combat for the Atari 2600 allowed you to drive your tank into a corner while exactly in line with one of the walls, which would teleport your tank to the opposite side of the screen.