To catch another trainer's Pokémon in Pokémon Emerald , you must use a specific sequence of "GameShark" or "Action Replay" codes. This process bypasses the game’s standard "don't be a thief" block that prevents Poké Balls from being thrown during trainer battles. ⚠️ Critical Warning: Save First

Using these codes can cause —corrupted data that can permanently take up a slot in your party or PC and potentially crash your game. Always create a backup save state on your emulator before proceeding. 🛠️ Step 1: The Master Code

Press and hold L + R (the shoulder buttons) on your controller or screen just before you select and throw the Poké Ball.

Immediately after the battle, check your party. If you see an "Egg" with a strange name or glitchy icon, do not save . Reload your previous save state.