* Which of the seven Justice Leaguers do we see first in the episode?
* For a brief period early in the episode, the plot seems to have been inspired by one of the live-action 'Superman' movies. Which one is it?
* The actor providing the voice of Flash is also (as of November 2001) involved in another television show featuring superhumans. What show is it?
* Two Justice Leaguers have first names that are very similar. Which ones are they?
* Which Justice Leaguer was NOT meeting all of the others for the very first time in this episode?
* Wonder Woman makes two references to the same Greek goddess. Which one is it?
* Flash's great speed allows him to do a number of amazing things. Which feat does he NOT perform in this episode?
* What is the name of the main television reporter keeping tabs on the events of the episode?
* Which of the following items did we NOT see Batman draw from his utility belt and put to good use?
* We see Hawkgirl, but not her perennial partner Hawkman. Why not?
* What planet is the alien invasion force featured in this episode originally from?
* Batman postulates that the invading aliens must have a weakness that can be exploited, and he's eventually proven right. What is this weakness?
* How much time lapses between the prologue (in which astronaut J. Alan Carter makes his discovery on Mars) and the action that takes place in the 'present center' of the episode?
* What is the name of the leader of the invading alien force?
* Technology from what planet is used in the construction of the Justice League's new 'Watchtower Satellite'?
* As Superman finishes his speech that basically invites the assembled heroes to remain together as a team, many of the heroes accept his offer by standing in a circle and joining hands. Which two heroes never participate in this circle?
* Which character uses a mace and has wings?
* Which character is supersmart and feared by criminals?
* Who is the fastest character?
* Which character has a powerful ring?