A game state is extremely useful for a number of reasons. The first is that the game may never have originally had any save function at all, meaning that you had to play the game in one sitting and if you turn the game off you will lose your progress. Another is that you can save at any time, irrespective if the game originally supported this or not. You can continue your game from exactly where you saved and it could be great for trying to defeat a difficult boss for example. If you die, simply reload the game state and live to fight another day!
Saving a game state
While playing a game, press and hold the START button and then press SELECT to bring up the in-emulator options menu. Select Save State from the menu.
Each game will have six save slots. Highlight any slot, you can overwrite previously used ones if you wish to, and click on it to save.
After a few moments you will be returned to the game and a notification will show that the game state has been saved and in which save slot.
The save is now complete and can be loaded at any time. You can continue playing or exit the emulator.
Loading a game state
While playing the game that you wish to load the game state from, press and hold the START button and then press SELECT to bring up the in-emulator options menu. Select Load State from the menu.
Choose the slot that you wish to load from. The date and time, as well as if it is the latest state, can be found at the bottom of the menu.
After a few moments, the game will resume from the exact point where the game state was previously saved.
The game may be paused, you can unpause the game and resume exactly where you saved. You can reload the game state again at any time if needed.