no, that didn't work, it also happens to me with metal slug below a horizontal line and in neo turf masters when I throw the ball some black dots appear in the upper leftclean the pins on the cart and the slot on the AES
do other games work fine -> most likely the game
I like to test NeoGeo systems with a 161-in-1 multicart, Metal Slug 5, Matrimelee, Garou etc., all games with lots of memory and hard requirements for timings, then there is the DIAG Bios, very helpful
measure the voltage and it seems correct, 5v and peak. Would I have to buy the original or would this not be the problem? Thanks a lotCould be related to power supply. Check PSU voltage, clean/replace PSU input on console.
sounds like its your AESno, that didn't work, it also happens to me with metal slug below a horizontal line and in neo turf masters when I throw the ball some black dots appear in the upper left