"After what seems like a very long wait version 1.1 of Koriki for the Miyoo Mini has just been released. This Simplemenu front end is very different from the ..."...
As with other home computers, the ZX Spectrum came with a built-in keyboard and could use an optional joystick. This gave game designers manifold options when it came to their chosen control scheme....
If not, it would be interesting to know why. Have you installed something else? Did you stay with the stock OS? Does the idea of changing the OS fill you with trepidation?
First of all, get yourself a reliable micro SD card. See Do I need to replace the SD card I received with my retro handheld? for some recommendations....