Smuggler's Run: Warzones

Invisibility:
Pause the game and press, Left, Right, Left, Right, Z, Z and R to become invisible.

Hover Sled:
Complete each mission with a Great rating to get the Hover Sled.

Turn Off Gravity:
Pause the game and press, X, Z, X, Z, Up, Up and Up. When you hit other vehicles, they will float into the air.