These boosters can be enabled only before a level starts:

   Kitchen Knight — Food is cooked instantly.

   Nonstick Shield — Food is cooked automatically and will not burn.

   King's Feast — The cost of dishes is increased by 25%.

And the following boosters can be used in the middle of the level:

   Royal Clean — Removes all burned and leftover dishes from the table.

   Tasty Time — The rose completely fills up the mood bar of the most impatient customer.

   Flavor Blast — The bomb completes all of a customer's orders at once.