If your ultimate goal is to play genuine Forza Horizon 4 on a mobile device, you can achieve this through rather than emulation:

It's essential to discuss the legal and ethical aspects of obtaining and using game files, such as ISO files. Games are intellectual properties protected by copyright laws. Downloading or distributing copyrighted materials without permission is illegal and can lead to severe penalties. The legality of emulating games is a gray area, often debated among gamers and legal experts. Generally, emulating a game is not illegal, but using or distributing copyrighted game data without a copy owned by the user is considered piracy.

If you want to play the actual game on your Android or iOS device, you can use .