The colors and sprites are amazing. The 3D peek at the terminal is fun. I like the whole package containing the game. The game feels very authentic to what I imagine it was like playing games on these terminals. Thanks for the game!
The art is interesting because it's not determined pixel-by-pixel, but rather with a list of coordinates for lines (see code) that get drawn to the screen.
Thanks for pointing out the code. I like the line definitions for the toon. I'm impressed that everything is done in javascript. I've usually avoided the language but the advantages of running in the browser are obvious and compelling. Good work, I hope you have more programs planned for PLATO.