At the beginning, when Dexter is typing on his computer, the sounds of typing do not match his hands.
RoboDexo 3000: I am the most powerful and intelligent robot.
Michael Dorn (from I.M. Weasel) guest stars as the voice of RoboDexo 3000.
If you look carefully enough, you may see English road signs: "No entry for vehicular traffic", "No right turn"
and "No motor vehicles"
Dexter: "Super Samurai Jacktion"
This is a clear reference to Samurai Jack, another cartoon that was created by Genndy Tartakovsky.