PSP homebrew developers jojodu0010 and marc6310 have released v0.2 of their homebrew game Duck-hunt. Basically, you use the analog stick (or the d-pad, whichever you prefer) to aim and X to shoot - you get 35 points if you shoot the faster yellow bird, 20 points if you hit the red duck, 10 points for annihilating the blue duck, and -10 points if you shoot the black ducks. The game is so simple, you wouldn't even notice that the entire game is in French. Here's the changelog for Duck-hunt version 0.2:

• graphic improvements
• creating cheat codes now possible
• added audio and analog stick controls
• improved RAM management
• you now have the option to aim using the analog stick or the d-pad
• addition of game summary at the end of the game