
Been on an MVS binge lately. All authentic carts, but Wind Jammers has a cheap replacement label and suffers from a few garbled sprites.

I knew before I bought it, but it was cheap enough that I figured it was worth taking a chance with. Tried opening the cart and cleaning it, but still suffers from the problem. Anyone have any ideas on what I might do to correct the problem if it CAN be corrected? Thanks.
Already own a copy of NAM 1975, but it came in the lot so, oh well.
