12 1 0If you're like me and already beat all these with the faster bikes, fear not. There's still a way to get this without facing the fastest riders. Simply unplug your internet cable or disable your wireless connection for a few minutes, you'll also need to set the xbox you want to get this achievement on as your home xbox, then launch the game not connected to the internet. Then simply select one of the monster mash supercross races and get 1st place. Easiest one is up to you but I prefer to race only one person instead of 7. Once you get 1st place the achievement won't pop until you plug in or enable your internet connection again. Hope this helps anyone as mad as I was for a few minutes there.