Hot Wheels: Velocity X Unlimited Ammo
To get unlimited ammo, hit 50 Barrels during Challenge 18.
Hot Wheels: Velocity X Unlimited Health
To get unlimited health, hit 179 barrels during Challenge 17.
Hot Wheels: Velocity X Unlimited Turbo
To get unlimited turbo, grab eight Zappers during Challenge 4.
Hot Wheels: Velocity X Unlock All Cars
To unlock all cars, hit 11 Bonus Stunt items while completing Challenge 8.
Hot Wheels: Velocity X Unlock All Items
To unlock all Items, hit 30 Barrels during Challenge 7.
Hot Wheels: Velocity X Unlock All Worlds
To unlock all worlds, find the Hidden Key in Challenge 18.
Hot Wheels: Velocity X Upgrade Your Laser
To upgrade the laser, finish Challenge 18 on very hard difficulty.