"Bat Girl" is the second segment of the fifty-ninth episode of Big City Greens.
Community Sue is leading her little league baseball team the "Sue-Zers" (a play on "Sue" and "Bruisers") through a big game of the season. Cricket and Tilly's family watch them as Nancy regales how she was once a little league player herself. Sue is disappointed that they are up against The Elite lead by her rival Community Dan who is obnoxious and teaches his kids to be ruthless show boaters. Despite their best efforts, the Sue-Zers are no match for The Elite who not only are better abled than their counterparts, but also mock and belittle the other team and perform fake outs on them. Midway through the game, the score is 0-11 with the Sue-Zers unable to play anymore and Sue becoming disillusioned.
Incapable of watching the injustice, Nancy takes the field by claiming that she is eleven, which the umpire believes when she claims that she has no I.D. Sue agrees to the tactic as they "took everything from me" and demands that she do whatever it takes. Nancy gathers the kids and teaches them to play just as ruthless as the Elite, though in the process they have to bench Benny. The Sue-Zers have a sudden turn around with them performing homeruns and outwitting the Elite with Dan also succumbing and facing the same type of insults and put downs that he once inflicted on the team. The score eventually ends up at 26-11 as Dan proceeds to insult his team.
During the final game, Nancy begins to realize that the kids are now becoming hurtful to the other team who are unmotivated now. Realizing that she has gone too far, Nancy speaks with the Sue-Zers and admits that she was wrong and that they need to turn the game around and let the Elite win. Though reluctant, they agree and proceed to on purposely turn the game around. However, in the final match, Benny, who had been feeling neglected, attempts to catch the ball, but Cricket stops him and the Elite win. Dan once again mocks the Sue-Zers, but contrarily, the Elite thank them for playing a great game. As the team congratulate themselves, Sue tells them that she believes that it will be a great season for them, but a title card pops up bluntly stating "It wasn't".
- Chris Houghton as Cricket Green, Skyler
- Marieve Herington as Tilly Green, Elite voice 1
- Bob Joles as Bill Green, Umpire
- Artemis Pebdani as Gramma Alice
- Wendi McLendon-Covey as Nancy Green
- Zeno Robinson as Remy Remington, Elite voice 2
- Monica Ray as Kiki Kitashima, Elite voice 3
- Luke Lowe as Benny
- Betsy Sodaro as Community Sue
- Lamar Woods as Weezie
- Jenna Ortega as Gabriella Espinosa
- Tim Robinson as Gregly
- Nicole Byer as Andromeda
- Colton Dunn as Russell Remington
- Lorraine Toussaint as Rashida Remington
- Rob Riggle as Community Dan
- Grey Griffin as Chelsea
- Eric Bauza as Elite voice 4
- Shane Houghton as Elite voice 5
- The title is most likely a reference to the DC Comics superhero of the same name.
- Andromeda appears since "Bill-iever".
- This is the first time that Nancy Green learns that Cricket has a girlfriend.
- This is notably the second time in the series where the word "turd" was used following "Tilly Style".
- This is the first time that Cricket wears shoes for an entire episode
- This is the first time that all recurring children have met
- This is the second episode focused on sports, the first is "Football Camp"
- When Nancy joins the Sue-Zers, not only is Benny bumped off, Cricket also loses his position as pitcher to Nancy and is moved to Benny's original spot in the left field.
- Tilly is the only one of the team who does not verbally or physically insult the rival team in any way; instead she sics a butterfly after a player, befitting her pacifism.
- Cheating doesn't prosper.
- Although it's fun to win, what's more important is being a good sport and working as a team.