How to unlock the gravity Rider zero game for free?

You cannot unlock the original gravity Rider Zero game for free. If you want to access the whole game without paying any charges you will have to use the modified version of this game. The modified version of this game has a feature of all unlocked.

Is the gravity Rider zero Mod APK safe?

The gravity Rider zero Mod APK is safe but it is safe only if you are downloading it from a safe source. There might be some harmful modification in the Mod APK if you are not using a reliable source for downloading it. You will have to choose a source that has scanned the Mod APK.

Can we use the original gravity Rider Zero game and the modified version of this game together?

Yes, you can use the original version of the gravity Rider Zero game and the modified version of this game together but you will have to do this on two different devices. You cannot install both of these applications together on the same device.