How could I forget Gorilla.bas? At the time, I had a coworker who was obsessed with the game, always trying to get people to play with him during working hours

How could I forget Gorilla.bas? At the time, I had a coworker who was obsessed with the game, always trying to get people to play with him during working hours. One day when he was out, I messed with the qbasic source and made his gravity concept be a random number. My coworker's winning streak ended as did his constant nagging to get people to play!