How does Jason get to Center Neptune? He's the only one who has a vehicle that can't go over or on water, and he doesn't always get there with help from the Phoenix.
Why the hell do 7-Zark-7 and 1-Rover-1 make the effort to fly if they only need to move about 5 feet?
Why have Mark's father survive the missle blast to correct the Van Allen Radiation Belt, only to have him killed in his sleep in the very next episode?
If Keyop is an android, why does he fall in love in the episode "Cupid Does It To Keyop"?
If Spectra is the only planet that attacks Earth and its allies, why don't the rest of the planets combine their forces and invade Spectra? They obviously know where it is, since Jason had to rescue Mark and Princess from there in "The Conway Tape Trap".