Level skip:
Hold Option 1 + Option 2 and run into a donut or through the Donut
shop. Your quota will be completed, and you may start the next
level from the station.

Level 99:
Complete the quota, then hold Option 1 + Option 2 at Officer Bob's
parking space. Game play will resume at level 99 with random quotas
each time it is completed.

Fast refuel:
Locate the double gasoline pumps on Highway 12. Park exactly between
both pumps and refuel at double the normal rate.