I did the ACE1101 version, and mailed a preprogrammed chip to the artist in Saskatoon. Archive.org has the original description:

https://web.archive.org/web/20020605032321/http://d116.com/a...

It was great fun bumming the code down; eliminating ping made room for bit-banged I2C and UDP uploading to an eeprom, still <1024 bytes.