Here’s a quick showcase of a new overlay megapack for the RG351M and RG351P, which allows you to fill up the black space on certain systems to improve your gaming experience.
Download the pack: https://www.reddit.com/r/RG351/comments/m7vnnb/rg351pm_overlay_megapack_crt_handheld_super_game/
Handheld settings guide: https://retrogamecorps.com/2021/01/28/guide-handheld-screen-settings-for-rg351-devices/
00:56 overview and installation
03:16 CRT overlays
05:26 handheld overlays