: Ensure the option "Unlock Extra Memory" is set to Disabled .
Ensure neogeo.zip is in the ROMs folder. The zip must contain files like vs-bios.rom , usa_biose.rom , etc. Redownload a clean MAME 0.78 BIOS pack. mvspsp 2.3.5
It’s worth comparing 2.3.5 to other options: : Ensure the option "Unlock Extra Memory" is set to Disabled
One hurdle new users often face with MVSPSP 2.3.5 is the memory limitation of the PSP. While the PSP-2000 and 3000 models have 64MB of RAM, the original PSP-1000 only has 32MB. Large Neo Geo games exceed this capacity. To solve this, MVSPSP uses a "cache" system. You must use a desktop tool (usually bundled with the emulator) to convert large ROMs into .cache files. These files are placed in the CACHE folder on your PSP, allowing the emulator to stream data directly from the Memory Stick rather than loading it all into RAM. Why MVSPSP 2.3.5 Still Matters Today Redownload a clean MAME 0
Furthermore, the PSP community has built an incredible ecosystem of accessories: from larger batteries to microSD adapters (allowing 128GB of Neo-Geo ROMs). Version 2.3.5, because it is a mature, bug‑fixed release, serves as a time capsule of the golden age of arcade emulation.