Armageddon mode:
Beat the game to unlock Armageddon mode. In Armageddon mode, everything that is destroyed explodes.
Play as Skydive:
To unlock Skydive, go to any Target with a DS Download Station, and download the Transformers DS trailer.
Play as any Autobot in Overworld:
Beat the game, then choose Overworld at the title screen and a character selection screen will appear.
WiFi Token bonuses:
Unlock the following bonuses by collecting the corresponding amounts of WiFi tokens:
Long Horn – Collect 250 WiFi Tokens
Psycho Cars – Collect 500 WiFi Tokens. This makes cars constantly hit you in Free Roam mode.
Gunner – 750 WiFi Tokens
Infinite Energy – Collect 1,000 WiFi Tokens. Alternately, get a 100% game completion.
Full health and no wanted level:
While playing in Free Play mode, press Start. Then, go to “Vehicle Form” and select “Confirm”. Press B to return to the game with full health and no wanted level.
Fountain ramp:
Go to the Tranquillity Museum with Create-A-Bot using the Hot Rodder form. Find the fountain and drive up to it slowly, facing east. When the front of the car is touching the fountain, stop, then press B R. The car will boost off of the fountain and fly high into the air.
Floating in Vehicle mode:
Go to the Tranquillity Museum with Create-A-Bot using any ground vehicle form. Find the building with two large smokestacks, located near the bridge between Downtown and the Junkyard. Climb up one of the smokestacks, then change to Vehicle mode. If you are on the northern smokestack, face north. If you are on the southern smokestack, face south. Hold R to boost off of the smokestack. Continue holding R, and Create-A-Bot will float in one place until his boost energy runs out.