Here is a guide on the metadata trick:
Step 1.you have to have shizuku enabled on your device
Step 2.now download a meta data that you want to add to the game (Note: You Need To Know What Game The MetaData is For!)
Step 3.copy the metadata file to the following location:
("Android/data/com.developer.game/files/iscp2/metadata")
Step 4.your done!