So I bought Pico-8 last weekend and have spent a few nights reacquainting myself with Lua (which I hadn't used much of before anyway) and learning Pico-8's nuances. I figured since I was still learning I would recreate one of my favourite puzzle games of all time - Lumines.
I will warn you, the graphics and (especially) sound are a bit rough. Also, I borrowed the fade code from Zep but re-purposed it to sort of fade in. It sort of works. I'll have to make an effort to learn exactly what that does.
But the gameplay itself is fine I think, adhering to the rules of the original. Scoring is a bit broken due to the integer limit and I haven't really looked into ways to get large integers yet.
If you fancy improving it be my guest! Likewise if you want to use some elements of it elsewhere (as unlikely as that sounds) that's fine too. It isn't really commented as much as it should be (sorry!)
Anyway, have fun!