If you're having an issue with the game displaying correctly, it's likely a problem with your emulator or your ROM file. Here are some things to check:
* Make sure you have a compatible emulator: Popular emulators for Pokémon games include VisualBoyAdvance, VBA-M, and mGBA.
* Check your ROM file: Ensure your ROM file is downloaded from a reputable source and is not corrupt.
* Adjust emulator settings: Go into your emulator's settings and check for any display-related options that might be interfering with the game's visuals.
If the problem persists, try using a different emulator or finding a different ROM file.
Remember: Downloading ROMs can be tricky and illegal in many countries. Always be cautious and use reputable sources for your games.