Just a proof-of-concept; do you think I should continue? Cover all grey lines, while not crossing over yourself. Every line you place has to cross at least one grey line. 100% pen!
The music is Parov Stelar - The Radio Mojo Gang (piano cover) Everything else is me and completely pen-rendered :) It uses my LTE, from https://scratch.mit.edu/projects/154063266/ IMPORTANT: press g if you cannot see the faint grey lines!
