The simmering rivalry between RoBro and Teensy finally erupts!
All of the monsters are holding a terrifying monster slumber party!
After all of the failed plots and schemes Master Mayhem has had enough!
Master Mayhem has decided to open a terrible summer camp for the kids on Earth.
Master Mayhem's mum arrives for an unexpected visit!
Master Mayhem is confused by his shiny new smartphone.
Master Mayhem gets a very strange visit from... himself, from the future!
Master Mayhem is desperate to finally win the Overlord of the Year Award.
Master Mayhem decides to give up his evil ways and become the nicest man in the galaxy...
Major Disappointment crashes on Master Mayhem's couch, and the pair start a prank war!
In an effort to become a master magician, Master Mayhem finds his tricks backfire.
Master Mayhem gives a behind-the-scenes tour, but accidentally reveals a bit too much.
Master Mayhem has created a brand new chart-topping pop music trio: The Doo Doo Dooms.
Master Mayhem goes away on holiday, leaving Earth's doom to Macho Cheese.
Dome Diddy Dome is sent to destroy planet Earth in Master Mayhem's place.
RoBro the buff robot is trying to help Master Mayhem get into shape.
Master Mayhem has gotten so angry that he is now in danger of exploding!
Major Disappointment has become obsessed with a video game.
Game show that combines live-action and CGI animated elements.
A monster is delivered in the post for Master Mayhem, and starts to run wild in his home!
Game show that combines live-action and CGI-animated elements.