It's either hilarious, nothing important, or downright horrifying.
In the early episodes, the things that happen to the kids, the places they go, etc. are almost always related in some way to the things they had been discussing/experiencing on Earth. Plus, in the later episodes, they go on the missions together.
The Penguins always sound exactly the same no matter who's going with them, plus the second episode features so many Call Backs to the first one that Michelle couldn't possibly have daydreamed unless Jason told her exactly what happened to him.
In "Wise Guys", Future Fidgel comments that the Penguin crew is seven decades late. It can be assumed the Penguins are in their thirties, so if you add seventy years to that, the Penguin's future selves would be like a hundred or something. Think about it, the Penguins' future selves look younger than a hundred.
The Poconos is a mountain region in this state, and if their parents are going on vacation, they would never drop them off with a relative that lived really far away.
They frequently modify images of space we've acquired from probes so it looks like we're alone. Why? It's probably because everyone here is so eager to perform an autopsy on any visitor from outside of our atmosphere, if you know what that means.
Of course, not always, but sooner than we were shown.
Shortly after the events of "I Scream, You Scream", they found out where Bert was. They then decided it would be best to play along with Cavitus and pretend they didn't know he was actually a hamster. When Michelle and Fidgel actually saw Bert go into his robot suit, they decided that would be the best time to drop the act. How would they know, you ask? Well, Fidgel and Michelle didn't sound that surprised when they saw who Cavitus really was.
Why don't penguins have surnames? Well, in the promo, Zidgel tried to claim that his first and middle names are "Adventure". He didn't go as far as to claim Adventure was his last name. And in "Runaway Pride at Lightstation Kilowatt", Kevin only asks if Zidgel's middle name is "Dwayne", not his last name.
Also, the penguins are referred to as Captain Zidgel, First Officer Midgel, and Dr. Fidgel. Its already been established that those are their first names, not their last names. Thus, someone with a certain title is properly addressed as their title and their first name combined. For example, Captain Zidgel Lloyd is properly addressed as Captain Zidgel, not Captain Lloyd.
And why is the second name referred to as the middle name? In order to make clear the fact that the second name is not an alternate name for the same penguin.
Despite his bio stating that hes a rockhopper penguin, he doesnt have the same hair color as Dr. Fidgel, another crested penguin. The reason why he is referred to as a rockhopper penguin and not half rockhopper penguin, half emperor penguin is because he didnt think he was emperor penguin enough due to him not growing as tall as the average emperor penguin.
Possibilities for what kind of penguins his parents are.
- Emperor penguin mother, rockhopper penguin father
- Rockhopper penguin mother, emperor penguin father
- Rockhopper penguin mother, emperor penguin mother
That's pretty much the only reason why he was referred to as "Commander" in "Wise Guys" up until "Oh, Mercy!" Plus, in "Kennel Club Blues", he didn't give the Rockhopper crew any orders. He only let them know more about where the gold locket came from.
Whatever reason why he was demoted, the reason why he didn't let the Rockhopper crew know he was demoted, either directly or indirectly via not giving them orders in "Wise Guys", was because the events leading to his demotion were classified, and the Rockhopper crew would try to find out the reason for his demotion.
Also, the reason why Zidgel called Admiral Strap "Commander Strap" in "Oh, Mercy!" was because he forgot for a second that Admiral Strap got re-promoted.