Firstly, the Beta runs great on my Hyperkin MegaRetroN/Mega EverDrive X5.

Now... I saw you saying a 8MB physical release is a possibility. Problem with that if you also have a ROM release is the limit for us plebs that can't afford a $190 flashcart (Mega EverDrive Pro). Please consider a  ≤ 7MB (<Joe_Voice>56 MEGA POWER!!!) ROM release version so X3 and X5 users can play.

Wishing you success with this project!

/max