Download cheat.db from a free PSP repository, place it in ms0:/seplugins/ , activate via the VSH menu (Select button + R Trigger).
For those playing on the PPSSPP emulator, accessing is easier than ever. PPSSPP has a built-in cheat system that scrapes a community-maintained database. Tenchu San Portable Cheats -FREE-
_C0 Infinite Health _L 0x6033A2F8 0x000003E7 _L 0x00020001 0x00003A2C Download cheat
Unlike modern games, Tenchu San Portable uses classic button combinations entered at specific menus. Ensure you are on the correct screen before inputting these commands. Input Sequence Pause Menu Press Left, Right, Up, Down, Square (x3) Unlock All Items Item Selection place it in ms0:/seplugins/
While in a mission:
Happy hunting, ninja.