This is a Powerpuff Girls crossover special with The Justice Friends with Major Glory and Valhallen, who appeared from Dexter's Laboratory (1996).
Despite being originally aired on Cartoon Network on August 10, 2001, it was aired on Kids' WB! on June 15, 2002 after the original premiere.
This episode was premiered on Kids' WB! on June 15, 2002.
Despite have being produced by Cartoon Network Studios instead of Hanna-Barbera, it shows the latter's logo at the end.
This episode was the last to credit Bubbles' voice actress as Tara Charendoff.