Nice puzzles, and the controls feel responsive. If you want to make a full game I recommend a few little things for a big effect: make the text at the beginning interactive (press x for next), make the win-text have a solid bg using \^# befor the text, like this: print("\^#Pico 8") and maybe make some variation on the tiles. I think this is a strong start and can become a really cool full game. Always love to see others use Pico-8 too :)