New currency alert!
While Juice is being sucked out of the ground to feed your insatiable tower construction lust, Prisms will be granted to you after completing a level:

These prisms can then unlock new towers, features and upgrades at shops scattered throughout the over-world. You’ll need these unlocks to broaden your playing style and enable different strategies and tower combos as you delve further into the later levels.

See you in the next announcement!