This was my entry to the Ludum Dare 31 game jam—the theme was “entire game on one screen”. The original page can be found here (maybe I should link to this rather than the cracked version on my site…): <a href="https://web.archive.org/web/20150106204654/http://ludumdare.com/compo/ludum-dare-31/?action=preview&uid=1496" rel="nofollow">https://web.archive.org/web/20150106204654/http://ludumdare....</a>
A friend of mine mid 90s was doing a clean room rewrite of doom (for fun, just to learn) and didn’t have any bounds checking on his maze - so it was possible to wander off into program memory and shoot variables. (Classic Mac OS, no memory protection)