View program code:
Note: This trick requires a GameShark cartridge. Start the game with the GameShark and enter the Pokedex screen. Press the reset button on the top of the GameShark to briefly see programmer information about the Pokemon.
Catching Mew:
Obtain a Pokemon that cannot evolve further and is marked with a star. Enter 919679D5 as a GameShark code. Then, evolve that Pokemon to get 10,000,000 points had have Mew.
Enter 919679D5 as a GameShark code and leave the GameShark cartridge off. Start a game and get into a catch 'em mode. Proceed to catch the Pokemon, and when the four "Catch!" lights are lit, get ready to turn on the GameShark. Hit the Pokemon again, and as soon as the ball hits, turn on the Gameshark. A message stating that Mew was caught will appear at the bottom of the screen. Save the game and check the Pokedex. Mew should be there. Return to the game and try to evolve Mew. It does not matter if you are successful, but your Pokedex will return to normal. If you do not, when you press Select to see how many Pokemon have been caught, 151/150 will appear (if you have all other Pokemon).