Other mistake: When Christopher shows up, he says "tomorrow is Saturday." Wouldn't the girls be at Friday night dinner? Not ordering pizza?
Where in the World Is Pookie Stevens? - S3-E2
Other mistake: During the yard sale, in the first shot of Donnie's area where he has all his sports stuff, the sign behind him reads "Donny's Corner". "Donnie" is misspelled here. In all the shots after this one, there are sneakers, or some other equipment hanging over the "y's", hiding the spelling mistake.
Other mistake: When Viper slides the swords to Jackie and they come to a rest next to him, there is a small paper spider right beside Jackie. The only paper spider in the room, however, is Origami himself, and he is actually too far away at that moment and too big to fit the bill. Guess some of the animators got their depth perception messed up.
Other mistake: After they arrive in Marina Bay the pink ranger is wearing the red ranger's jacket.
Other mistake: In the episode where Tino is freaking out about the "FunVille" Arcade door looking like the mouth and face of a clown, it does. But in another episode I saw this morning (where Carver pretends to be all tough) the FunVille door is like any other normal door.