To unlock PlayStation3 trophy rewards, complete the following Trophies. Wish granted!

Trophy	How to unlock
AllSpark (Platinum)	Unlock All Trophies.
Autobots are Weak! (Bronze)	Defeat all 3 waves in Megatron's Lair without dying on Hard Difficulty in Chapter VI.
Body Count (Bronze)	While holding out for Reynolds to send backup in Chapter III, 30 Decepticons are killed.
Boot Stomper (Bronze)	Kill 3 Enemies with Bumblebee's Kick Ability in Chapter I.
Chapter I (Silver)	Complete Chapter I on any difficulty.
Chapter II (Silver)	Complete Chapter II on any difficulty.
Chapter III (Silver)	Complete Chapter III on any difficulty.
Chapter IV (Silver)	Complete Chapter IV on any difficulty.
Chapter V (Silver)	Complete Chapter V on any difficulty.
Chapter VI (Silver)	Complete Chapter VI on any difficulty.
Chapter VII (Silver)	Complete Chapter VII on any difficulty.
Completionist (Gold)	Destroy all hidden TRANSFORMERS symbols in Campaign.
Counting Coup (Bronze)	Use only melee attacks on Shockwave's power core to make him retreat to his cryo platform.
Fleet of Foot (Bronze)	When one Driller arm is attacking, avoid all attacks in Chapter VII.
Furious Flyer (Bronze)	Fly through the canyons after Air Raid in 120 seconds in Chapter V.
Good Driver Discount (Bronze)	Avoid taking any damage from Starscream's proximity mines in Chapter III.
Grenade Expert (Silver)	Eliminate 20 opponents with the Flak Grenade in Campaign.
Homewrecker (Bronze)	Wipe out all secret base ground defenders within 60 seconds in Chapter V.
I know what I'm doing! (Bronze)	Change into vehicle form before reaching the change form tutorial in Chapter I.
Overlord (Bronze)	Drain 5000 health from enemies in Chapter VI.
Power Surge (Bronze)	Use an active ability 5 times in a public multiplayer match.
Prime (Gold)	Complete the Campaign.
Primed for Combat (Bronze)	Activate Optimus' Shoulder Rocket ability 5 times without dying in Chapter VII.
Recruit (Bronze)	Survive 60 seconds in a public multiplayer match without being killed.
Road Kill (Silver)	Destroy 30 enemies while in vehicle form in Campaign.
Rule With an Iron Fist (Bronze)	Kill 20 enemies with Ironhide's Melee attack in Chapter II.
Sacrifice (Bronze)	Be the first one eliminated in a public multiplayer match.
Seek and Destroy (Bronze)	Kill 25 Enemies using Grenade Blossom in Chapter II.
Serrated (Bronze)	Kill 10 Autobots with Laserbeak's ram ability in Chapter IV.
Stunning! (Bronze)	Stun 10 Autobots with Soundwave's stun ability in Chapter IV.
Surprise Package (Bronze)	In the air battle, activate Starscream's Guided Missile ability 5 times without dying in Chapter V.
The Champion (Gold)	Reach level 20 in any single class in Multiplayer.
Top Score: Bumblebee (Silver)	Complete Chapter I with a score of 1000000 or more.
Top Score: Ironhide (Silver)	Complete Chapter II with a score of 1000000 or more.
Top Score: Megatron (Silver)	Complete Chapter VI with a score of 2000000 or more.
Top Score: Mirage (Silver)	Complete Chapter III with a score of 800000 or more.
Top Score: Soundwave (Silver)	Complete Chapter IV with a score of 1000000 or more.