HomebrewModder released a modified version of Hangman for the PSP
Release notes:
I modded PSPwner’s Hangman game’s data to make it fit under these categories: Nintendo (n64, wii, gba, ds) Sony (PSX, PS2, PS3, PSP) Linux (top operating systems) XBOX (old, 360) and PSP Homebrew (the best). They are all separate games and are very fun to play. Just be sure you thank PSPwner and also be sure to press O to go to next dictionary (PSP games to PS3 games to PSX, etc.)