To increase your Hawkins Heroes level, tap on the ‘Hawkins Heroes’ button in the Base. You will see an overview of your current Hawkins Hero level and the resources needed to level up. Once you have enough resources, tap the ‘Level Up’ button to level up all your characters in your Roster to the next Hawkins Heroes level.

In this advanced leveling system your characters will progress at a slightly slower pace, power and cost-wise, however, you will be leveling up your whole Roster at the same time.