Character mistake: In the flashback of Mr. Mac Fist hitting Roger in the eye, the fist hits Roger in his right eye. Once the flashback ends and goes back to the present Keenan and Kel, Keenan says "My dad couldn't see out of his left eye for 2 weeks."
Visible crew/equipment: When Kel gets up to get more water you can see one of the cameras.
Kel Kimble: Aw, here it goes.
Question: How come Roger won't let Kyra help with her Social Studies project?
Answer: He's simply enjoying doing it himself. Especially since he likely believes he can do it better than she can.