but I can't get Music Tech v2 to work on either cartridge. I've tried multiple different sources for the ROM, but every time the game starts the screen flashes and goes blank. I saw that JustinThursday sold some carts in August, but i'm a little late to that party.

Anyone have any idea what the problem is or how to fix it? I've scoured these forums and google to no avail.

this is another issue i'm having, but it has more to do with personal skill than technical problems
If you know how to make LSDJ a little more forgiving with a loop pedal (I have an RC-20) that would be greatly appreciated.