Choose the Decepticons and choose "The Hunt For Sam Witwicky" level. Go to the sports shop next to the mall. Then, go to the gas station and face the mall. There should be a jump. Transform and go off the jump into the building on the right. Note: Make the jump off the side of the ramp and use boost when you are close to the ramp. When Barricade hits the building, make sure that he lands upside down (do not transform when this happens). Wait a few seconds and Barricade will flip over. When he does he should be bouncing up and down with his wheels on the ground, sitting still. This may require a few attempts.
Cheat Codes
Enter at the menu that has campaign and bonus features listed:
Megatron is the final opponent in the Autobots storyline. He will first be in his jet form and shoot two rounds at you. Use your shield to avoid them. After firing two rounds, he will land. His next attack is ramming. You cannot hit him while he is still focused on ramming. When he stops ramming and stands up in one place looking around, pick up any car and quickly throw it at him. If not done fast enough, he will return to ramming. If that happens, wait for him to stop again. If done successfully, he will now attack you. Hit him in close range combat with your melee attacks. After a few hits, he will return to being a jet. After two rounds of firing, he will again return to the ground. In his second attack, he will use his ball and chain. Throw another car at him. If done successfully, he will attack you again. Use melee attacks on him. He will then become a jet and fire at you again after a few hits. Do the same as before to avoid the attack. After firing at you, he will go back to the ground. His third attack is the flamethrower. Be careful because it will be difficult to get cars to throw at him. When he is hit by a car you threw, he will attack again. Use melee attacks on him. For the last time, he will become a jet again. Use the same strategy used earlier to avoid the attack. He will land after a few hits and attack you with all the attacks he used previously. Throw cars at him after each attack. After that, you will fight him for the final time. Use melee to defeat him.
Defeating the cement truck Decepticon
When you are fighting the cement truck Decepticon as Ironhide, transform and run him over to knock him down. Then, pick him up and throw him.
Destroying decepticons with one shot
First, when you are fighting a decepticon, it will attack you. Run somewhere far from the decepticon. Just press: Circle, circle, Up, Down, R1, L2, Square and Left.
That way, you can destroy the decepticon with one shot. Example: Throw a car, Throw a tank{ Not Advised}, Throw a tree or fight it with melee attacks and shooting it. Just one shot, the decepticon is dead. Especially Megatron and the other decepticon. But if you missed, try throwing a some other objects like Lamp Posts. And don't stay to close to the decepticon while entering the code. I died once when I stood to close typing in the code.... Hehe.....
Full Jump Points with Jazz
On "More Than Meets the Eye", go to one side of the Power Plant and avoid all obstacles. While using Nitro Boost, drive off of the edge of the containment wall - this should give you full jump points if you do this right.
Infinite health
At the menu with the "Campaign", "Bonus", and "Options" selections, press Left(2), Up, Left, Right, Down, Right. If you entered the code correctly, the screen will flash.
Infinite Health
Enter Left, Left, Up, Left, Right, Down, Right.
Scan new form
In the game enter L1 R1 L2 R2 found one press X if not press Triangle.
Secret icon locations
Autobots
The Suburbs
1. The High School: On the roof of one of the High School buildings.
2. Bobby Bolivia's: Behind a building in the back of the used car lot.
3. The Mall: On the roof of the main building.
4. Sam's House: Behind the billboard on the roof of building closest to Sam's House. Drive down the street Sam's house is on towards the city. It is on the roof of the first building you approach.
5. Power Plant: On top of a fuel oil tank around the middle of the Power Plant.
More Than Meets the Eye
6. The Police Station: There is a ring of buildings around the central police station. The icon is behind middle building in this ring.
7. Power Plant: There is a park near the Power Plant. Look closely in the park to find it.
8. The Baseball Field: In the parking lot right next to the actual field.
9. The Police Station: In the alleyway of a square shaped cluster of buildings found on the street connecting the Police Station and the mall. It is on the right hand side of the street if going from the Police Station to the Mall.
10. The Baseball Field: On the roof of a building in the triangular shaped cluster of buildings between the Baseball Field and the Mall.
Inside Hoover Dam
11. Central Control Area: Inside the control room (progress through the story missions).
12. The Containment Lab: In front of Megatron (progress through the story missions).
13. Service Tunnels South C, D: In a corner to the right of the tunnel leading towards Service Tunnels South A, B area (close to the Chapter 1 dot on the mini-map, although on the opposite side of the wall).
14. Service Tunnels South C, D: Heading towards Service Tunnel North B, in a cubby hole on the left just before the road leading to the Central Core Area, above a health pick-up.
15. Service Tunnel North A: On the first level of the generator structure closest to the tunnel, on the side of the structure facing you as you come out of the tunnel.
The Last Stand
16. The Construction Site: Across the street on top of the tallest, tapering building.
17. Central Park: Near the bird statue.
18. City Boulevard West: Roof of tall, brick building near Chapter 3.
19. Central Park: Next to a water tower on top of a building across the street from the bird statue's right wing tip.
20. Central Park: On the roof of the third cluster of buildings from Central Park directly behind the obelisk (from the starting point, go forward straight over the first two clusters of buildings. The icon is on top of the third set of buildings, a small one story building is to the right and a “Lush Dog's” billboard is to the left).
Decepticons
SOCCENT Military Base
1. U.S. Military Airbase: Next to the hangar near Chapter 1.
2. U.S. Military Airbase: Behind a building on the opposite side of the base from Chapter 1.
3. Supply Depot East: Near the tank lot (you can get it in the Attack sub-mission).
4. Bedouin Village: Near the center of the village.
5. Bedouin Village: Across the paved road from Bedouin is a cluster of small bases. The icon is next to the L-shaped base closest to the square base.
The Hunt for Sam Witwicky
6. High School: In the park next to the high school.
7. Bobby Bolivia's: In the highway tunnel near the used car lot.
8. The Mall: In the middle of the three way alley in the cluster of buildings immediately between the Mall and the Baseball Field.
9. Housing Estate North: Between two houses on an elevated row of houses (first two house on left as you come up towards the dead end).
10. Sam's House: Behind the brown house that is between two white houses. There is a health pick-up in front of the brown house.
A Gathering Force
11. The Tank Depot: Between two long buildings near the mountain.
12. The Recreation Area: Between two buildings on a curved part of the road (near the Baseball Field).
13. Roof of a building between the Recreation Area and the Aircraft Depot.
14. The Aircraft Depot: Behind a building that is near a fuel oil tank.
15. The Residential Quarters: In the middle of the larger housing circle.
City Of The Machines
16. Central Park: On top of the tall building facing the bird statue's left wing.
17. Main Avenue: In a curved area with many umbrella covered tables.
18. Central Park: On the roof of the building cater-corner to the bird statue's left wing.
19. Central Park: On the roof of the tall corner building in the cluster behind the bird statue.
20. Central Park: On the roof of the corner building cater-corner to the bird statue's right wing.
Swindles in "More than meets the eye"
In the free way of the level "more than meets the eye", in the free way (When you are not to play in any level) you canot fight with any decepticon. But you can fight with several to become the following one: Of plays the level of the jazz "Obstruction justce". It passes three first rings, but not passes the 4, and deviates you for the nuclear power plant. Later it opens the menu "Pause" and loads in "quit mission". There failed will appear in screen "Mission failed" and goes to to the free map, and when to give for the account decepticons swindles go to start to appear mounts in the free map! To find swindles, I made a list of the places where they costumam to be:
1 - Parked in the park of the lot of used cars or in the lot of demolitions
2 - In parking of the field of baseball or in the gasoline bomb more close to the park of baseball
3 - in the nuclear power plant or the place of construction
4 - Or in the houses or behind one of the buildings
Note: This list also valley in the level "The suburbs".
Unlimited Bad Guys
Go to the Power Plant and drive around the perimeter of the property. Every time you do this, a Deceptacon should appear.
