Story progression (Level 1 T-Rex). See "A New Hope"" for more information.

Complete any level and this unlocks. The first level of both campaigns is extremely easy, so this shouldn't be too hard.

Story progression (Level 3 Truck). See "Tricked Out" for more information.

These achievements are gained via completing the T-Rex storyline. Your goal is to eat all the cars before they visit all the delivery locations.

Tips:

• Keep bashing the button whenever you are heading towards a delivery truck. There is some sort of 'lock on' that will help you target the truck and it makes life easier.
• The first two levels are extremely easy because you do not have any competition.
• In the last four levels, you have one or two other T-Rex's competing with you for the trucks. When there are no trucks, run around while tapping and, with luck, the trucks will spawn next to you.

This achievement is for eating 40 trucks. You should unlock this at about Level 4 or 5. If not, you can replay missions until you get this.

Easiest to do on Level 3. The map is tiny and there are only about four buildings. Rampage through the level, knocking over buildings, and you will get this. Just make sure that every building is destroyed by the end of the level. You can follow your progress by looking at the meter at the top of the screen. It will show you how many buildings that you've destroyed, relative to the ones you have left.

Set up a multiplayer game with two players (two controllers). Game settings should be:

Type: Chaos
Map: Any
Deliveries: 20
Eats: 1

Using the triggers, select the 'T-Rex' to start of as one. Because of the settings, you only need to kill the truck once for the achievement to unlock. Please note that this game does not have online multiplayer capability so this achievement can only be gained in a local multiplayer only.

Story progression (Level 4 Truck). See "Tricked Out" for more information.

These achievement are gained via completing the Truck storyline. Your goal is to 'deliver' Doritos to all the delivery points (ie. the flashing white circles).

Tips:

• Use your boost! These can be extremely useful in tight situations; especially in later levels.
• When on a straight run, use the boost.
  
• When you respawn, head towards an arrow. Chances are it will be close.
• If a T-Rex is chasing you, use the boost to get away from it.

Story progression (Level 5 T-Rex). See "A New Hope" for more information.

Story progression (Level 5 Truck). See "Tricked Out" for more information.

This achievement is for delivering 40 deliveries. A delivery is when you enter one of the white circles. You should have this by level 5. If not, repeat a level and this achievement is yours.