Invisible Ditto

From Glitches

From the games Pokemon Red/Blue and Pokemon Yellow for the Game Boy

You need the Masterball for this. Do the Missingno glitch and find an M (not a Missingno), then catch it with the Masterball before it has any time to attack. You will catch it, but the battle won't end. If you have more than one Masterball (obtained through the Missingno glitch) use it, and you will catch the invisible pokemon. It is a Ditto.

Submitted by: Mitchell VanRassel