Battling The Generation Gap! (Japanese: ポケモンコンテスト！カンナギ大会！！ Pokemon Contest! The Celestic Convention!!) is the 43rd episode of Pokémon: DP Battle Dimension.
Back in the past, Johanna had her Glameow use Iron Tail to attack a Delcatty, knocking it down. However, Delcatty disappears and appears near Glameow, using Shock Wave to sparkle. Time is up and Johanna's challenger, Lyla, wins. Johanna congratulated Lyla, who put up a good fight. Dawn contacts her mom, Johanna, who reports she won a lot of battles, but Lyla ended her winning streak. Ash wonders who Lyla is, so Dawn shows him a magazine of Lyla, explaining she is a PokéStylist. Johanna reports after she lost to Lyla, Lyla retired from Contests and eventually became a known PokéStylist. Brock remembers her store is in Celestic Town, inspiring Dawn to visit the shop.
Dawn and Brock leave Ash, who tries to think of a strategy to defeat Fantina. Brock and Dawn visit the shop, seeing Lyla designed Wallace's stage costume. Dawn asks the merchant if Lyla is around, but is told she is absent for the day. Ash manages to inspire his Pokémon to think of a way to beat Fantina's Hypnosis, but manages to make them asleep instead. At the Contest Hall, Marian greets the audience, as Dawn tries to prepare herself. A woman passes by and notices Dawn's hair messed up, so she fixes it for Dawn. Dawn thanks the woman, who is actually Lyla. Lyla recognizes Dawn as Johanna's daughter before being pulled by her own bodyguard. After presenting the judges, Marian shows the first contestant: Lyla. Dawn is shocked to hear she has to fight her mom's rival. Lyla sends out Cherrim, who uses Magical Leaf, followed with Sunny Day, to create a floating image of a flower. Dawn sees Lyla is powerful, but also her opponent.
After some performances, Jessie, playing as Jessilina, dressed similar to Fantina, sends out Yanmega. Yanmega gusts her in mid air and causes her to levitate with Silver Wind. James and Meowth are displeased, seeing her imitation of Fantina has failed. Next is Dawn, who sends Buneary to bounce. Buneary spins and uses Ice Beam and slides down, using Dizzy Punch to slide on her ears. Buneary is starting to spin too much, so Dawn catches her before something happens. Dawn comes to the waiting room and finds Lyla talking to Johanna. Dawn thinks the battle between those two was exciting. Lyla replies it was important as well, for when she won her fourth ribbon, she wondered to take the path of a Coordinator or a PokéStylist. An opportunity to learn how to be a PokéStylist appeared, and with Johanna's advice, she went abroad to become a PokéStylist, while Johanna focused to become a Top-Coordinator.
However, seeing Dawn battling on TV, Lyla was inspired to participate in the Contest one more time to win the fifth ribbon. However, she wants to see how Dawn is battling, just as she saw Johanna battling. Afterwards, the screen displays the next eight Coordinators going into the next round. Dawn and Lyla are among them, shocking Jessie she is not among them. Dawn decides to use Ambipom for battles ahead. After winning the four battles, Dawn faces Lyla. Dawn knows her mother is watching, but decides to relax, since she can try again if she loses this battle against Lyla, who won the battle against Dawn's mother. Dawn sends Ambipom against Lyla's Delcatty. Ambipom uses Swift, but hits Delcatty's Substitute. Delcatty wraps itself and uses Shock Wave, hitting Ambipom, creating an image of a flower. Johanna is excited, seeing Lyla has not changed her fiery charm.
Ambipom uses Double Team, going out of Delcatty's grasp and hits it with Focus Punch. However, Ambipom gets infatuated by Delcatty's Cute Charm. Delcatty sings out, putting Ambipom to sleep. Delcatty hits Ambipom with Iron Tail, who is still asleep. Delcatty uses Shock Wave, inflicting more damage. However, Ambipom wakes up and uses Swift, but hits a Substitute. Ambipom uses Double Hit, attacking Delcatty, but is affected by Cute Charm. Ambipom uses Double Team, surrounding Delcatty. Delcatty uses Sing, but affects only illusions, while the real Ambipom hits Delcatty with Double Hit. Ambipom uses Swift, hitting Delcatty and its Substitute. Delcatty uses Shock Wave against Ambipom's Swift, colliding the attacks with each other. However, the Swift attacks hits Delcatty, slamming him down.
Time is up and Dawn wins, having more points left than Lyla. Dawn hugs Ambipom for the victory, while Lyla thanks Delcatty for the battle. Lyla congratulates Dawn, who receives her third ribbon. Later, Lyla invites the heroes into her shop, showing them they can take whatever they like. Dawn admires Lyla's merchandise, while Brock and Ash have picked new clothes. Ash admits he also learned how to counter Fantina's strategy.
- The song "Oración", music from Destiny Deoxys, Pokémon Ranger and the Temple of the Sea and The Rise of Darkrai are used as background music.
- Professor Oak's Pokémon lecture: Starly
- James and Meowth wore the same outfits they wore in Gymbaliar!.
- The dub title for this episode is a reference to the phrase "bridging the generation gap".
- In one scene, when Lila's bodyguard pulled her away, the ribbons on Dawn's dress disappear.
- At one point after Lila made her appeal Cherrim posed, the viewer can see a line running down its flower petal giving it the impression it has two flowers on its head instead of one.
- The status ailment Attraction does not wear off on its own in the games: the afflicted Pokémon must be switched out or the one who inflicted it must be removed from battle.