Description: Play Regular Show: Nightmare-athon The Nightmare-athon has begun! Real zombies have attacked a screening of Zombocalypse 3D and it's up to Mordecai and Ribgy to protect the audience. Luckily, Muscle Man brought all of his old track and field sports equipment. Throw shot puts, discuses, and bombs as Mordecai or use Rigby's javelin to wipe out the zombie horde.
