I got as far as getting the secret image with the code, but now I'm confused of how to do anything else. Awesome game though, I enjoyed my time playing it!

I didn't find a "secret image" but did get infected with a kitten virus and get to a screen that said "You won!". 'Twas a fun walk down memory lane =).

Short but funny, and a much better "oldschool terminal" experience than I was able to make. Not sure what the whole kitten/bullet hell thing was about, but I beat it and got a "You won!" screen.

I didn't find any secret images (I think), but had fun none-the-less.