Fastest Way To Get This:
- Grab A Boosting Buddy or 2nd Xbox (Online's Dead)
>Multiplayer
>Online Multiplayer
>Create Public (Might be able to do Private but I did it this way)
Mode: Arena
Type: Survivor
Track: Desert Arena
Nitro Gain: 200%
Damage Modifier: 200%
Car: All classes
Equipped car upgrades: 100%
A to Confirm
Invite your friend
Go to Garage, Go To AllStar Cars, Select the Fury Frenzy M600 (Looks like a Charger)
Have your friend Go to Garage, Go To Derby, Select the Derby Cookie (Starting Car)
X to Ready Up with your Buddy.
All you do at this point, is hit the gas, you'll break a few things, slam your nitro and into your friend. If you don't instantly kill him, hit him again and done. Can hit X to Retry and it'll count. CANNOT Quit Boost.