buy pico 8

go to itch.io and download the raspi version. pico-8 was in the blm bundle that everyone has, you probably already own it.

put it in your roms folder

now extract the contents of the folder called pico-8 into the pico-8 roms folder on your sd card.

not the bios folder... i struggled with this...

it works now, congratulations

play the games. you love the games.