First, make sure you have a Game Boy Advance emulator compatible with your device, such as VisualBoyAdvance-M for PC or My Boy! for Android. The installation process is very simple, you will need two things, an emulator, and the Pokémon Emerald ROM file. It has been rated PEGI 3, so it can be considered suitable for all audiences.
"If you need something to satisfy your thirst for the next Pokémon adventure, Emerald is perfect." (Nintendo Insider) Pokémon Emerald has been rated on Metacritic with a score of 76 out of 100. There is also an unofficial version with multiplayer support for up to 4 players. Pokémon Emerald offers a solo adventure that approximately lasts 31 hours if you finish the main story and many more if you explore all the game. Pokémon Emerald features the same aerial perspective and 2D graphics as all the classic Pokémon games.