At the end of the episode, Galatea throws a red towel over her shoulder when exiting the gym. This is a nod to the partial red cape worn by Power Girl, who Galatea is designed after.
Beebop, the yellow, green-eyed cat The Flash rescues, is based on Power Girl's cat from the 1980s' Giffen/DeMatteis Justice League comics.
Included as a "Bruce Timm's Top Picks" bonus cartoon on the bluray release of Superman/Batman: Public Enemies (2009).
Flashpoint is also the title of a graphic novel in which the previous Flash (Barry Allen) travels back in time to save his mother, only to inadvertently cause major alterations to the timeline.