I can't find anymore some contributed tutorial material by the community that used to be attached to the now-legacy lessons.
In particular I cannot find anymore r0dy's pacman.zip that was based on the Crazy Grid's code from Lesson 21. I did a lot of searching/googling, and it seems to be gone Are there plans to restore some of the missing files like that? Or are they gone for good? It'd be a pity. The referenced file was formerly found via following URLs that are now well dead: