Note: This is the 2007 game by Activision, not to be confused
with the 2004 game Transformers
by Atari.
Unlimited health:
Press Left(2), 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(2), 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(3),
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(2), Down, Right,
Left(2) 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(2), 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. Alternately, collect all the Autobot Faction Symbols in the Autobot
story line.

Play as Robovision Optimus Prime:
Press Down(2), Up(2), Right(3)
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". Alternately, successfully complete the Autobot story line.

Play as Starscream Generation 1 version:

Press Right, Down, Left(2), Down,
Up(2) 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. Alternately successfully complete the Decepticon story line.


Play as Jazz Generation 1 version:
Press Left, Up, Down(2), 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.
Alternately, complete all sub-missions in both story lines.

Play as Megatron Generation 1 version:

Press Down, Left(2), Down, Right(2),
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. Alternately, collect all the Transformer Shields in the Decepticon
story line.

Hint: 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.

Hint: Defeating the Decepticon with a hose:

During the mission when you are Ironhide and help Jazz
at housing estate south, there is a Decepticon with a hose. You
cannot hit him with melee attacks until you throw something at
him. After that, you can pick him up, or when he gets up you can
use melee attacks.


Hint: Defeating Decepticons:
Go to "The Suburbs" or "More Than Meets
the Eye" levels. Go to the power plant. There is already
a Decepticon there, but you can also bring one there. You will
see some capsules marked "Danger, High Voltage". There
are about 100 of them at the power plant. Pick up a capsule and
throw it at the Decepticon. The capsule is highly explosive and
causes quite a lot of damage. Make sure you are not caught in
the explosion or you will be sent flying through the level. Also
if you are closer to the city, this sometimes causes one or two
police cars to come at you. There are a few of these capsules
also at the junkyard. The same can be done with gas trucks in
the junk yard or the gas tanks in the gas station near the junk
yard.

Hint: 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.

Glitch: Barricade hydraulics:
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.


Glitch: Final Showdown: Jazz can jump off
train tracks:
When playing as Jazz, find some train tracks. Climb
a building that surrounds the track. Transform and use the nitrous.
You should fly through the air. This may require a few attempts
if you do not go fast enough.