Mugen+6gb+patch

If crashes persist, consider using a more optimized screenpack or resizing oversized character sprites to reduce their memory footprint. 4GB patch and 6GB patch | Tom's Hardware Forum

"MUGEN 6GB patch" is likely a misconception of the well-known

It prevents M.U.G.E.N from crashing when loading massive rosters or high-definition characters that exceed the 2GB limit. You can find the most common version at 2. Why "6GB" Might Be Mentioned