I was never into the Spectrum or any vintage computer like that, but the pico-8 fits that same gap of having an (artificially) limited system, so your code is u

I was never into the Spectrum or any vintage computer like that, but the pico-8 fits that same gap of having an (artificially) limited system, so your code is ugly and uses two-letter variable names because you can only fit 40 characters on screen and the graphics are pixelart. But you can make something and since there's simply not the space for it, bikeshedding is discouraged.