Gamers will apparently collect Power Orbs to unlock new abilities and more. (wewritethings.co)
You can't move wherever you want however, you can only move within a limited space, which can be increased by upgrading your characters with power orbs as you progress in the game. (mygameslounge.com)
These can be upgraded by using power orbs that are found in chests throughout the world, or as rewards from combat. (gaminginstincts.com)