I did it! After a lot of recording, cleaning, and tweaking I was finally able to get Water Bug II loaded! Hit the link, wait for it to load, then hit enter to give it a whirl. Then use the 5, 6, 7, and 8 keys to move (left, down, up, right) just as they are on the ZX81 keyboard.
This year will mark the 30th anniversary of the ZX81's debut. Hard to believe this little wonder is turning thirty and how much the world has changed. My goal is to celebrate the occasion by continuing to update the site with new content. I’d like to do a monthly showcase of programs as well.