Pokemon Sapphire Glitches
Pokemon Duplication (Clone)
Put the pokemon you want to clone in an empty box, then take it out and put it in another box (make sure it's a different box), then save. But when it says "Saving do not turn off power," turn it off. The next time you turn the game back on there should be two of the pokemon you cloned.
Submitted By: Skiny_B*tch
Stand on Tree (No Effect on Game Status)
Use cut on short trees and stand on top of it. Save and turn the game off and on again, and you will be on top of a short tree.
Submitted By: Pokemon Glitch Finder