How to mod red ball 4 (Updated method) Step 1: you will need to download the 

"Red ball editable apk updated APIs" mod

Here's the link: https://gamebanana.com/mods/500912

Step 2: Now you will need "apktool M" to download 

That go to this link: https://maximoff.su/apktool/?lang=en now download it and then install it. Now open "apktool M" and then

You can allow notifications if you want and then

Agree to the "license agreement" and allow the next Permission. If you're on Android 11 or above, tap on OK and allow "apktool m." You'll get a pop-up. Tap download on the pop-up, and it will download it. Then tap yes.

If you mess up something, delete the app's data in settings. Your apktool m is now set up.

Step 3: now you can mod red ball 4

First, you need a file manager. I recommend zarchiver

Assets: here is where you have the textures of the game the music and the sound

Graphics: here you can change the textures of the game and only three skins work because you can't do achievements and when you change the images make sure the image's resolution is the same.

Fonts: useless

Physics: don't change anything here :)

Sounds: here you can change the sound effects of the game.

Music: here you can change the music of the game

Step 4: now go to the folder in "apktool m" and tap on compile and it will compile the apk and tap on the apk and sign it and when it signs the apk tap install and it will ask for ian permission and allow it and now. You have modded red ball 4. 

If you have any problems comment.