From the screen outside the arena, head to the arrow location to bottom right. You will come to a gift stand with Horrace. Use the car remote. The remote car will run out of power. Talk to Horrace if you'd like. To get the bunny you need to distract Horrace. Look at the shirt behind Horrace. Ben will ask if the shirt is cotton. Horrace will turn. While he is turned use your hand on the bunny to steal it. Once you have the bunny, go back to your motorcycle. Drive to the left to the minefield in front of the Vultures lair. Use the bunny on the minefield. After it explodes, a battery will appear on the ground. Grab it and the achievement is yours.