A: Yes. It works on all PSP models (1000, 2000, 3000, Go) running custom firmware (PRO-C, LME, or ARK-4).
A: There are rumors, but no confirmed project. The Tenchu San team has moved on to Shinobido for PS Vita. Conclusion: A Stealth Masterpiece Finally Speaks English The Ninja Katsugeki: Tenchu San Portable English patch is a triumph of fan dedication. It takes a forgotten PSP exclusive—one that already contained two full games (Tenchu 3 + Tenchu 1 remake)—and makes it accessible to the entire world. Ninja Katsugeki - Tenchu San Portable English Patch
If you are a Tenchu fan, this is the definitive way to play. The portability, the bonus content, and the smooth performance on PPSSPP (or a hacked Vita) make it superior to the PS2 original. A: Yes
[Romhacking.net Project ID: 4872] Requires: Ninja Katsugeki: Tenchu San Portable (Japan) ISO – CRC: 0x7A3F1D8E The Tenchu San team has moved on to Shinobido for PS Vita
A: The team has a thread on GBAtemp.net or Romhacking.net. They released a v1.1 hotfix in February 2024 that fixed a crash in Mission 7 (The Shipyard).