Update:
Okay, I've finished Peacewalker on jpcsp. Save for the bug where any version of peacewalker boss is unbeatable(i had to play those battles on my PSP), everything works great(with the occasional bugs of course).
Funny bugs I've found(resolved by restarting jpcsp):
Monsters in monster hunter, after doing their initial growl, just stand there and stare at you.
On some maps, enemies "dance". They are all in sync while checking their left then right foot. Left, right, left right...
On some maps, there is a consistent sonicstage bug. There are those that need sonicstage turned off, then there are those that need it on.
On occasion, there is some kind of "haze". Degrees of haze varies. All of this is usually resolved by enabling decoding of indexed textures. If it doesn't resolve that way, deactivate ge textures to memory(apply), then enable again.
Sometimes, on Cocoon battles, the Cocoon isn't there!
Pity this is supposed to be completely playable. I tried portable ops on jpcsp and i've checked the threads and that game has a long way to go methinks, before it can be playable.
Btw, for anybody interested enough, I have some new settings that have made the game run faster than ever(almost no stutters now).
All in all, awesome emulator!! I'll be trying out some more of my long forgotten backups.
Thank you so much for the hardwork, devs and others. You know who you are. 
Okay, I've finished Peacewalker on jpcsp. Save for the bug where any version of peacewalker boss is unbeatable(i had to play those battles on my PSP), everything works great(with the occasional bugs of course).
Funny bugs I've found(resolved by restarting jpcsp):
Monsters in monster hunter, after doing their initial growl, just stand there and stare at you.
On some maps, enemies "dance". They are all in sync while checking their left then right foot. Left, right, left right...
On some maps, there is a consistent sonicstage bug. There are those that need sonicstage turned off, then there are those that need it on.
On occasion, there is some kind of "haze". Degrees of haze varies. All of this is usually resolved by enabling decoding of indexed textures. If it doesn't resolve that way, deactivate ge textures to memory(apply), then enable again.
Sometimes, on Cocoon battles, the Cocoon isn't there!
Pity this is supposed to be completely playable. I tried portable ops on jpcsp and i've checked the threads and that game has a long way to go methinks, before it can be playable.
Btw, for anybody interested enough, I have some new settings that have made the game run faster than ever(almost no stutters now).
All in all, awesome emulator!! I'll be trying out some more of my long forgotten backups.
Thank you so much for the hardwork, devs and others. You know who you are.