Skipper asks Kowalski if he's ever made anything that won't destroy the world. Kowalski says no. This is false because he almost destroyed the world in "It's About Time" with his time machine and then he actually did "destroy" the world when he made a snow-cone machine.
This episode has aired in New Zealand.
Kowalski appears to be a heavy sleeper in this episode. As King Julien attempts to take the helmet off of Kowalski's head while he's asleep, Kowalski sleeps right through everything King Julien does e.g. hammering the helmet, trying to pull it off or bouncing on his belly.