If you mean while using an emulator, it depends on the emulator you are using.
Check in the options for the controls.
its not an emerald its RAYQUAZA the main legendary Pokemon in Pokemon emerald.
Usually they don't mean anything, but for the GameShark you can use L and R for activating codes.
You cannot get a Yanma in Pokemon Emerald, as only Hoenn Region Pokemon can be found in Pokemon Emerald.
rotom isn't in Pokemon emerald
where do you get the spade from on Pokemon emerald
If the Button Mode is L=A, then pressing L does the same as pressing A. Otherwise it does nothing.
L+A+Select L+A+Select
In an event other than that there isn't a way. L
hold down l than it will pop up
its not an emerald its RAYQUAZA the main legendary Pokemon in Pokemon emerald.
Usually they don't mean anything, but for the GameShark you can use L and R for activating codes.
By the Pokemon league place Please disregard the above answer, as it is false. There is no way to get a Mankey in the wild in Pokemon Emerald. You'll need to trade it from a Gen. l or Gen. ll game.
You cannot get a Yanma in Pokemon Emerald, as only Hoenn Region Pokemon can be found in Pokemon Emerald.
There is no PalPark in Pokemon Emerald.
Sinnoh Pokemon DO NOT EXIST IN EMERALD!!!
There is no Autosave in Pokemon Emerald.
where can i find groudan in Pokemon emerald