Sitting comfortable at 2244a is the latest version of OpenBOR from developer SX. Most notably OpenBOR now supports SecurePAK mods. So what I suggest: playing Night Slashers X.

OpenBOR v3.0 Build 2244a changes:

• Moved DebugInfo Option from video options to system options
• Added new option in System Options to Disable File Logging. Which improves load times if you are not concerned about log files and in-gameplay logging slowdown. Default Enabled.
• New Default CPU speed for PSP is 333 MHz
• SecurePAK is supported in the Build

Download OpenBOR v3.0 Build 2244a