100% BEEFG 50

Very simple achievement. Once you've beaten the final boss and after the credits, you'll be brought back to the main title screen but now you'll see a final boss option at the bottom of the screen. Click on that and you'll be brought to the area you created your player. Click done then choose to be reborn and you'll be brought back to where you first started the game. Run forward and you'll now find a dragon in the parking lot. Approach it and press Y which will allow you to fly him. Press LB will switch between walking or flying. Now just go to the basketball court where the cows and bulls are. Use your fire breathing by holding RB and roast a bull and it will quickly turn into a hamburger. Just do this 4 times.