It exists as a fake cartridge dump on Zimmers. I just played it, and I don't know if the image is corrupted, but I don't know what to do. It is technically advanced with software sprites in an unexpanded game, but it seems you can easily get stuck in the scenery.
Yep, by Eugine Evans. At that time, he was a 16 year whizzkid who pointed out how he managed to get more stuff and routines into 3.5K memory than others managed to fit into 16K.