Various cheats
     Enter codes for each character during one of their missions. This
will change the character's appearance to their Generation 1 skin.

Key: U= Up D=Down L=Left R=Right

Cheat code:        Effect:
D D U U R R R      Generation 1 Skin Optimus Prime
R D L L D U U      Generation 1 Skin Starscream
L U D D L U R      Generation 1 Skin Jazz


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.


Unlockables:

G1 Megatron: 
     Collect all the Transformer Shields in the Decepticons story mode.

G1 Optimus Prime (Cartoon Model): 
     Find all the Autobot faction symbols during the Autobot campaign.

G1 Robo-vision Optimus: 
     Finish the Autobot campaign.

Starscream G1 repaint: 
     Complete Decepticon story mode.