You can now play From Below Pocket on your Analogue Pocket with an official .pocket version of the game! Although the ROM could be played using OpenFPGA already, this will allow you to use the full suite of features on the Analogue Pocket, including dot filters.

Huge thanks to BestPig on Retro Patcher (jonabrams.com) for uploading a patch, and Chop1n - itch.io and jonny_eh - itch.io for letting me know about the patch!