Valkyrie Profile Lenneth is pretty good, but it can drag at times if you recruit everyone you can.
EDIT: If your system is hacked, or capable of supporting it, get yourself a GBA emulator. The GBA is a haven for awesome RPGs. You wouldn't have thought so, but it is. It has the whole lot. Strategy RPGs like Fire Emblem, FF Tactics, Zone of the Enders, etc. Action RPGs like Castlevania. Traditional RPGs like the almighty Golden Sun games and Pokemon. Out of all the files on my PSP, my GBA emulator sees the most action, except possibly Monster Hunter Portable 3rd's English patched ISO.
EDIT: If your system is hacked, or capable of supporting it, get yourself a GBA emulator. The GBA is a haven for awesome RPGs. You wouldn't have thought so, but it is. It has the whole lot. Strategy RPGs like Fire Emblem, FF Tactics, Zone of the Enders, etc. Action RPGs like Castlevania. Traditional RPGs like the almighty Golden Sun games and Pokemon. Out of all the files on my PSP, my GBA emulator sees the most action, except possibly Monster Hunter Portable 3rd's English patched ISO.