I played through this yesterday, and really liked it. The Vic-20 one was great, too.The difficulty seems just right. I got stuck in two places for a while, but eventually worked them out.
Wow,
How long it took?
I think it was 2-3 hours. The end of C2 and start of C4 were tricky! It takes 10-15 minutes now that I know what I'm doing.
yep,
speedrun takes ~15 mins
..but damn. only 2-3 hours.
I thought that puzzles are too difficult.