Sick game!
I got really into trying to minimise line length, have cleared the first 15 levels with a total line length of 22. (1,1,2,2,3,0,1,1,1,0,4,2,1,1,2).
Anyone else been going for minimum line?
if you're not going for all the coins (which ig is required for your minimum line to show up on the menu but yea) then you can do level 4 with 1 line by placing a single pixel down in the left corner, such that theres just enough space to stand in
(like this)
then from there, you can nudge that pixel to the right by tapping the left side of it (which doesn't use any pen), until you're far enough into the wall that you can hold right and clip through it
then you just walk to the right and jump right as you pop out (since you get stuck otherwise)
also im curious what you did for level 5 since i can't seem to get close to 3 :o