Transformers: The Game Cheats - Xbox 360

Unlimited health
Press [Left]x2, [Up], [Left], [Right], [Down], [Right] at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry.

Ammo no reloaded
Press [Up], [Down], [Left], [Right], [Up]x2, [Down] at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry.

All missions
Press [Down], [Up], [Left], [Right]x3, [Up], [Down] at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. All missions including the two special missions will be unlocked.

Bonus Cybertron missions
Press [Right], [Up]x2, [Down], [Right], [Left]x2 at the menu with the "Campaign", "Bonus", and "Options" selections and start through replay missions. The screen will flash to confirm correct code entry.

No traffic, police, or military
Press [Right], [Left], [Right], [Left], [Right], [Left], [Right] at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. The only vehicles remaining will be parked.

Play as Optimus Prime Generation 1 version
Press [Down], [Right], [Left], [Up], [Down]x2, [Left] at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.

Play as Robovision Optimus Prime
Press [Down]x2, [Up]x2, [Right]x3 at the "New Game" main menu. The screen will flash red to confirm correct code entry. Go the "Bonus Features" option then the "Generation 1" option to select "Robovision Optimus".

Play as Starscream Generation 1 version
Press [Right], [Down], [Left]x2, [Down], [Up]x2 at the "New Game" main menu. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.

Play as Jazz Generation 1 version
Press [Left], [Up], [Down]x2, [Left], [Up], [Right] at the "New Game" main menu. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.

Play as Megatron Generation 1 version
Press [Down], [Left]x2, [Down], [Right]x2, [Up] at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.

Achievements
Complete each achievement to get the allotted gamerscore:

Keeper of the AllSpark (75) - There is no Transformer that stands greater than you. You have achieved 100% completion.
Mad Skillz (40) - You are skilled beyond belief. Achieved all Skill items on all levels.
Pride of Brawl (15) - Your destruction comes naturally as a Decepticon. Achieved full Destruction Skill.
Pride of Bumblebee (60) - You've scouted the world thoroughly. All the secret icons have been collected.
Pride of Ironhide (15) - You are the epitome of an Autobot. Achieved full Heroic Skill.
Pride of Megatron (20) - 200 Autobot Drones have fallen before you.
Pride of Optimus Prime (20) - 200 Decepticon Drones have met their match.
Robots in Disguise (25) - You've transformed 500 times.
Root of all Evil (15) - You take pride in destroying your enemies. Achieved full Evil Skill.
Shot Putter (15) - You've sent objects flying. Achieved full Throw Skill.
Sideways Motion (15) - You can handle turns with ease. Achieved full Slide Skill.
Speed Demon (15) - You've really burned rubber. Achieved full Speed Skill.
Transform and Roll Out (10) - You've transformed for the first time.
We Don't Need Roads (15) - Who needs roads when you can fly through the air? Achieved full Jump Skill.
What Challenge? (10) - You have handled a challenge with ease. Complete your first Challenge sub-mission.
Wrong Way! (15) - You're living dangerously. Ram 250 Cars.

Secret Achievements
Additionally there are 26 secret achievements:

Suburban Hero (25 points) - Bumblebee protects Sam in The Suburbs.
Suburban Hero Challenger (20 points) - Complet all challenge sub-missions in The Suburbs.
Neighborhood Watch (25 points) - Continue your defense of The Suburbs as Jazz and Optimus Prime.
Neighborhood Watch Challenger (20 points) - Complete all challenge sub-missions in the suburbs.
Could You Describe the Ruckus? (25 points) - Bumblebee causes a disturbance in order to escape the Hoover Dam with the AllSpark.
The Ruckus? Challenger (20 points) - Complete all challenge sub-missions in Inside Hoover Dam.
Downtown Defender (25 points) - The Last Stand has been made. There's only one thing left to do.
Downtown Defender Challenger (20 points) - Complete all challenge sub-missions in Autobot City.
Look to the Stars (50 points) - Megatron and the Decepticons are finished.
Sand Blaster (25 points) - Qatar is destroyed.
Sand Blaster Challenger (20 points) - Completed all challenge sub-missions in Qatar Desert.
Suburban Scourge (25 points) - The Autobots fall before you. The Suburbs are done for.
Suburban Scourge Challenger (20 points) - Completed all challenge sub-missions in The Hunt for Sam Witwicky.
Air Traffic Destroyer (25 points) - Starscream's power knows no bounds. The airbase's defenses are obsolete.
Air Traffic Destroyer Challenger (20 points) - Complete all challenge sub-missions in the Airbase.
Downtown Demolisher (25 points) - The city is in ruins. There's only one thing left to do.
Downtown Demolisher Challenger (20 points) - Complete all challenge sub-missions in the Decepticon City.
Finish this Planet (50 points) - Optimus and the Autobots are but a memory. Earth is yours.
Weapon Systems Inactive (20 points) - Complete Suburbs Chapter 1 using only melee attacks.
Sharp Shooter (40 points) - Complete Airbase Chapter 3 with more than 2:30 minutes remaining.
Turbo? We don't need no turbo! (30 points) - Complete Hoover Internal Chapter 2 without using boost.
Land Shark (10 points) - Spend 2 minutes underground.
Batter Up (10 points) - Find a bat and make your enemy fly.
Pit Crew (10 points) - Use a large tire to harm your enemy.
Ring-A-Ding-Ding (10 points) - Use the Helio phone as a weapon.
I know Kung-Fu (30 points) - Perform 1000 punches.

Unlockables
Play as Optimus Prime Generation 1 version - Collect all the Autobot Faction Symbols in the Autobot story line.
Play as Robovision Optimus Prime - Successfully complete the Autobot story line.
Play as Starscream Generation 1 version - Successfully complete the Decepticon story line.
Play as Megatron Generation 1 version - Collect all the Transformer Shields in the Decepticon story line.

Defeating the cement truck Decepticon
When you are fighting the cement truck Decepticon as Ironhide, to knock him down transform and run him over. Then, pick him up and throw him.

Defeating Megatron
Megatron is the final opponent in the Autobots storyline. He will first be in his jet form and shoot up to two rounds down at you. Avoid that by using your shield. After two rounds of firing, 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. Again after two rounds of firing he will 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. Once again after a few hits he will become a jet and fire at you. Do same as before to avoid that 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 few hits and attack you with all the attacks he used previously. Throw cars at him every after each attack. After that, you will fight him for the last time. Use melee to defeat him.