- While running out from the kitchen to warn Moominpappa, Moominmamma's hand goes through the iron bar holding up the stove in the dining room of the Moominhouse.
- When Snufkin says they will need axes to remove the plant from the Moominhouse, Moomin replies by saying that the axes are in the basement which is inaccessible due to the plant. Moomin runs directly to The Snork Maiden after arriving at the house so he couldn't have known that the basement was blocked.
Behind the Scenes
- First appearance of The Hobgoblin in the series.
- First appearance of The Hobgoblin's Panther in the series.
- First and last appearance of the Antlion in the series.