matherp has recently posted MMBasic conversions of the BBC Micro games Elite and Chuckie Egg on thebackshed forum. These both run on the PicoCalc but you will need to update the firmware to the latest beta version. I’ve tested both briefly and they both seem to run well.
The links are:
Chuckie Egg: TheBackShed.com - Forum
Elite: TheBackShed.com - Forum
Firmware: Release PicoMite V6.03.02b6 · UKTailwind/PicoMite · GitHub
I’ve tested using the standard RP2350 build. I don’t suppose either will run on a RP2040 and I haven’t tried a RP2350 web version