In Regular Show: All Nighter, Mordecai and Rigby are in trouble! They accidentally released Pop's collection of fireflies from his old thyme bug jar so now they must catch the bugs quick or they will lose their jobs! Help the troublesome duo by slinging Rigby up into the sky to catch the glowing insects. Watch out for dangerous crocs and bats that threaten our heroes from succeeding in their task. Stay up late with Mordecai and Rigby in Regular Show: All Nighter!