Plot hole: After Lady X is taken away, the doctor arrives with an antidote that can bring the Ikes back to life, which he then gives to Polar Penguin who is just sitting in a Copa-Banana chair in the middle of the street. What exactly was Polar's dead body doing there? Last time he was seen, he was at the Copa-Banana and had died from his injuries, but his body is shown sitting in a chair in the middle of the street. The doctor creating an antidote that would undo his injuries was completely unplanned, so there is no real reason for his body to be out in the middle of the street like this. (01:20:45)
Plot hole: When Dex and Dan get separated in the store, Dex flies in a bottle of pop to retrieve Dan, but there is nothing attached to the bottle that is allowing it to fly. It is just floating in the air, with no explanation as to how it is doing so. (00:41:05)
Plot hole: When Dex is rescuing the baby kittens from the Fat Cat Burglar on the hot air balloon, whilst it is flying over the city, the four hairless hamster henchmen fly off the balloon and plummet down onto the street. Dex then saves the baby kittens and lands in the park, where two of the henchmen are shown landing in the park after plummeting. Three problems with this. 1) The henchmen fell before Dex saved the kittens and made his way down to the park, so how did they land on the ground long after Dex landed on the ground? 2) How did they land in the park if they plummeted from above a street? 3) How are there only two henchmen shown landing when four of them were shown falling all at once? (00:04:30)
Plot hole: After Dex saves the baby kittens from the Fat Cat Burglar, he makes his descent to the park where a crowd is waiting for his arrival to celebrate his 500th consecutive case solved; the 500th case being Dex saving the kittens. The problem is, Dex only saved the kittens, and therefore only solved the 500th case, mere seconds before landing in the park, so there is no way the news of this could have broke in that short span of time, and nowhere near enough time for the crowd to be ready in the park for his arrival. The crowd leaves immediately after, so it is clear they were there for Dex and could have not been there for anything else. (00:04:20)
Plot hole: When the supermarket changes into the Marketropolis world for the first time, all of the inhabitants are able to come outside, but a large quantity of cars can be seen driving the streets. The market only changed into their world, and allowed them to come outside mere seconds earlier. This is too quick for the inhabitants to create this quantity of cars driving in the short span of time. (00:01:20)