Alice lures Oscar and his monster friends for a tea party, but only to turn the monsters into cute babies.

Oscar learns that he can earn merit badges that unlock prizes.

Oscar and Hedgehog learn about a quicksand that lets them go back in time.

The monsters get nervous when their Godmonster comes for a visit.

Oscar and his friends are challenged to a game of softball by Susie and the witch camp counselors; the campers try to play fair, but it is incredibly obvious that the witches are using their magic to cheat.

Oscar receives a camcorder from his parents and sets out to prove to them the magic on the island is real.

Oscar and Hedgehog must learn to exist without each other when they are put on different teams during a scavenger hunt.

Ramona invites Hedgehog and Oscar to participate in a special holiday ritual.

Para ayudar a Ava a superar el miedo escénico, Erizo toma el violín de Ava, mientras Oscar pide algunos refuerzos.

Hedgehog and Oscar investigate problems at the U.M.P.S. and meet the new intern, Oddjobs, who's a great friend but a terrible employee.

Oscar attempts to make the breakfast of his dreams.

After discovering that young Mortimer doesn’t have any friends, Oscar helps him start a new club on campus. But the monsters are forced to hide their newfound friendship from the school – and Stuart.

Mortimer and the monsters must figure out how to send Oscar back to his own time, but the only person that can help is the foe of monsters everywhere: a witch. Will they all be able to work together to get Oscar back to Hedgehog?

Frustrated that he doesn’t know his magical identity, Oliver convinces Susie to tell him by means of nonviolent protest. Not wanting anyone in her house, Susie takes Oliver on a series of errands to help him figure it out.

Susie must rely on Oscar and Hedgehog in unimaginable ways after a magic trick gone wrong.

The magical creatures work together to send Mildred on a mission so they can have a special bedtime.

Susie makes contact in another realm.