[Vivtek]

I did the same thing with Bolo on an Apple ][e - I never got very good at the game but I dumped the assembler code for the whole thing onto greenbar paper and marked it up with highlighters. Then gave myself infinite lives, made the maze walls penetrable, made myself invisible to the robots - all kinds of stuff.

The penetrable walls were the best, because if you drove your tank off the map, the graphics renderer would just look at whatever memory happened to be specified by your impossible coordinates, display eerie shifting structures that were the working memory of your code, and pretty quickly crash the whole machine writing the tank sprite into god knows what.

That was a fun summer. I wonder if my mom still has that greenbar printout in her basement.