At the Booster Store, you can purchase the boosters you need to complete levels.

To find the Booster Store, open the restaurant store and choose the booster tab.
Tap "i" to find:
• The booster name
• A description of the booster
• The number of lightning bolts required to get the booster (only for super boosters acquired before a level starts)

The number of boosters you have is indicated in the bottom right-hand corner on the booster icon.

Boosters are sold both individually and in packs. In the latter case, prices are shown for the whole pack.
You can use boosters you purchase at the Store in the levels of all restaurants and game events.