Once you open a Chest, you will get Rumbler units that will help you upgrade your Rumblers. To do so, go to “My Team”: if any of your Rumblers has a green bar and arrow, then it means an upgrade is available. Click on it and select “Upgrade”.Enjoy your powered up Rumbler!Maximum levels for each Rumbler type are the following: Core – Level 25Pro – Level 21Superstar – Level 9Legend – Level 5 NOTE: As the upgrade costs gold, make sure you need that upgrade before confirming it, as we will not be able to reverse it and refund its cost.
_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
Rumble Hockey Game GUIDE