Most "Batman mods" for the mobile version of Farming Simulator 20 are asset replacements. Instead of a standard tractor or truck, players install custom files that change the appearance of:

Download the Batman mod pack (often found on community forums or YouTube tutorials). Open your FS20 APK in an editor.

FS20 is designed for mobile; high-detail mods like a 3D Batman model may cause lag on devices with less than 4GB of RAM.