I've made 2 Mr. Gimmick repros now. The japanese one is missing sound effects. Jumping, the star charge, etc..

The European one of course runs too fast, and is glitchy. BUT... it did have all the sound.

I was reading online there is a patch, which can be applied to the Japanese version, but is very hard to find.

I am trying to play this on a AV famicom with a converter to allow me to play NTSC-USA nes games. My game does have the sound chip. So I just need to get this working I think.

Anyone have any ideas? Or where this elusive patch may be?