“Users were gleefully told to reload the game.”
This 9-minute video from the fun game show Lateral (with Tom Scott!) covers a particularly interesting bug in the 1984 game Karateka:
If you don’t want to watch the video and try to figure it out alongside contestants, you can read more about it here, and also see it in action.
Karateka was made by Jordan Mechner and I bet his name will come up again.