Serve three colas one after another as quickly as possible.

Once hamburger patty is in the pan, don’t take it out even after it’s ready and see what happens To be able to do this, COLA DISPENSER must be upgraded to level 2 Serve two colas one after another as quickly as possible. Serve 30 hot dogs with or without ketchup Go to the INTERIOR UPGRADES window and upgrade ONE of the following items: Table, Bar Stools, or Television Purchase one upgrade that increases customer waiting time Go to the INTERIOR UPGRADES window and upgrade ONE of the following items: Disco Ball, Tree, or Flower Pot Go to the KITCHEN UPGRADES window and upgrade the following item: COLA Go to the KITCHEN UPGRADES window and upgrade the following item: HOT DOG GRILL PAN (unlocked at level 4) Go to the KITCHEN UPGRADES window and upgrade the following item: BURGER FRY PAN Serve 15 hamburgers with or without additional ingredients (lettuce leaves and tomato) Go to the KITCHEN UPGRADES window and upgrade ONE of the following items: HAMBURGER TABLETOP or HOT DOG TABLETOP *This was the number displayed when the star threshold was crossed on a level. Unlike kitchen upgrades, which go into effect as soon as you pay for them, interior upgrades can take anywhere from 1 minute to 4 hours to upgrade. It also provides an option for extra customers which is the most expensive upgrade. Interior upgrades increase a customer’s wait time, tip time, and tip amount.

Additionally, kitchen upgrades increase the price per portion of food. They also increase how many portions can be prepared at one time. Kitchen upgrades increase how quickly machines cook food or refill beverages.

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