Here is the scene where Ash, Pikachu, Tai & Agumon Emerl meets Hoopa and they meet Meray and Rigby & Mordecai's old friend Nikolai in Team Robot in Pokémon the Movie: Hoopa and the Clash of Ages.
(Then we see Ash, Pikachu, Tai, Agumon and Emerl are dragged outside of the ring reveal to be a Confined Hoopa)
Hoopa: Ali Hoopa-
(He sees the five heroes as they crash to the ground)
Tai Kamiya: That hurts.
Agumon: You said it.
Ash Ketchum: Hey? Where are we?!
Emerl: I don't know?
Tai Kamiya: Take a look at this.
Ash Ketchum: (Looks at the ring) Did you think it came through this?
(Ash points his finger and then reaches his arm inside the ring)
Agumon: Is that a ring?
Emerl: But, where did that come from?
(Then suddenly Hoopa came in front of the ring)
Hoopa: Were you surprised?
Tai Kamiya: (Jumps) Whoa!
Agumon: (Jumps) Yikes!
Emerl: (Jumps) What the?!
Ash Ketchum: (Jumps) We sure are.
Ash Ketchum: So who are you?
Emerl: Wait are you...?
(Hoopa eats the donut and swallows)
Ash Ketchum: Hoopa? Are you are Pokémon?
Agumon: It is a Pokémon.
Emerl: The Legendary Pokémon that can uses it's rings to summon everything.
(Pikachu grabs Ash's ears and turns)
Ash Ketchum: Hey, what is it Pikachu?
Emerl: Is there a problem?
(Then they see the view of the city. Ash remembers the tower in the flashback)
Ash Ketchum: It's Dahara City.
Emerl: Oh my gosh!
Agumon: No, way!
(They run to Hoopa)
Ash Ketchum: So the ring did that?
Tai Kamiya: Your the one who transported us here to this place, didn't you?
Hoopa: Hoopa never saw one of those.
Ash Ketchum: Well this is Pikachu.
Ash Ketchum: No not Pikan, it's Pikachu.
Ash Ketchum: And my name is Ash.
Emerl: And I'm Emerl leader of the Sega Unit Patrol Squad 1.
Tai Kamiya: My name is Tai.
Agumon: I'm Tai's digimon Agumon.
Hoopa: Ashkan. Emerkan. Taikan. Agukan.
Ash Ketchum: It's Ash.
Emerl: I'm Emerl.
Tai Kamiya: I'm Tai.
Agumon: It's Agumon.
Hoopa: It's Ashkan and Emerkan.
Ash Ketchum: No, it's Ash.
Emerl: No, I'm Emerl.
Tai Kamiya: I told you it's Tai.
Agumon: And my name is Agumon.
Hoopa: (Repeats) Pikan, Ashkan, Emerkan, Taikan, Agukan.
Ash Ketchum: Your kinda strange.
Emerl: I'm sure it's just being playful.
Tai & Agumon: Tell me about it.
Hoopa: Do you like Pikan?
Ash Ketchum: You mean, Pikachu. Pikachu's my best friend.
Emerl: Don't forget that we're your best friends too, Ash.
Ash Ketchum: That's right, Emerl.
Hoopa: Best friends, huh? Look. (Hoopa brings out two rings)
Tai Kamiya: What is Hoopa going to do now?
Hoopa: Ali Hoopa Ring!
(Hoopa summons a swarm of Pikachu)
Emerl: What the?!
Tai Kamiya: Lots of them!
Hoopa: Hoopa! Hoopa! Hoopa! Hoopa!
(Then 5 Cosplay Pikachus appears)
Agumon: Five Cosplay Pikachu!
Hoopa: Hoopa! Hoopa!
(Then Hoopa stops bring more and it's rings comes back to it's horns)
Hoopa: Were you surprised?
Emerl: We sure are.
(Then six Pikachu hangs on Ash's arms and legs and he trips)
Tai Kamiya: Now which one is Ash's Pikachu?
Agumon: How should I know? There's so many of them.
Hoopa: Ashkan. Ashkan! 'Kay Now which one's your Pikan?
Emerl: I don't know? There's so many of them and it's hard to find out which one is Ash's Pikachu?
(Ash grabs his Pikachu)
Ash Ketchum: This one.
Emerl: Good thinking finding out which one is yours.
Hoopa: (Falls to the ground and starts whining) Awww Hoopa lost! Hoopa lost!
Agumon: Give it a rest kid.
Tai Kamiya: Uh, Agumon.
Emerl: All the Pikachu are going to zap us!
(Then a group of Pikachu unleash their Thunderbolt attack zapping Ash, Emerl, Tai and Agumon. Then we see a woman and a goat appears and sees the event)
Nikolai: Come on.
(Cut to Ash, Emerl, Tai and Agumon are zapped)
Emerl: Well, that was shocking.
Tai Kamiya: I can feel electricity is paralyzing my body!
Agumon: Yeah, me too.
Meray: Hoopa! What's all this?
Nikolai: What did you do?
Hoopa: Meray! Nikolai!
Ash Ketchum: Your trainers?
Emerl: Who is that Goat?
Tai Kamiya: And that woman too?
Meray: What are all these Pikachu doing here?
Hoopa: Hoopa ringed them here!
Meray: I told you not to do that, didn't I?! Send them back or you wouldn't get your donut. Do you understand?
Nikolai: Meray, be careful!
(Meray accidentally steps on one of Pikachu's tail and shocks her)
(Meray Got paralyzed)
Nikolai: Are you okay?
Meray: I'm fine and send them all back!
Tai Kamiya: Okay.
Pikachu: Pikachu! Pika Pika!
(Then Pikachu uses Thunderbolt to listen to many Pikachus, Much to everyone's surprise)
Agumon: That's quiet shocking.
Tai Kamiya: So what is Pikachu doing now?
(Then Pikachu jumps and listens to many pikachus)
Meray: Oh my word.
Hoopa: Amazing, Pikan, amazing!
Ash Ketchum: Alright, Hoopa. Now!
(Hoopa flies next to Ash's Pikachu where tells all of the Pikachu to listen to him)
Hoopa: Pikan, leave it up to Hoopa!
(Hoopa brings out two rings as all the Pikachu went inside the ring)
Ash Ketchum: All Right!
Hoopa: (Repeats) Let's go!
Tai Kamiya: I think we're almost done.
Hoopa: That's good, Let's go!
(Then Ash, Emerl, Tai, Agumon, Nikolai and Meray walks up to Pikachu and Hoopa)
Hoopa: Let's go!
(All of the many pikachus send them back where they belong Then Hoopa puts two rings back into it's horns)
Ash Ketchum: Thanks, Pikachu. Good job.
Agumon: You did a good job.
Meray: Thank you very much.
Nikolai: Did a wonderful job.
Emerl: Your very welcome.
Meray: But, who are you people.
(Back at the Pokémon Center)
Sparx: What's taking them?
Chumley: Uh, are they're going to be okay?
Slumbo: I think so.
T.K. Takaishi: I'm feeling worried about Ash, Pikachu, Emerl, Tai and Agumon.
Patamon: Me, too.
Kari Kamiya: Where could Tai be disappear to? I'm beginning to worry about him and Agumon.
Gatomon: Same here.
Philmac: I look everywhere and there's no sign of them anywhere.
Xion: I sure hope, Emerl is okay.
Buttercup: What's taking them so long?!
Gilda: Yeah, This is taking a while.
Rainbow Dash: (Groans) There taking a little while!
Fluttershy: I'm feeling worried.
Discord: I'm sure they're will be okay.
CJ: When will they come back?
Mordecai: (Sighs) I don't know?
Anger: It was those Villains I'm gonna make them all punished for kidnapping our friends!
Disgust: Anger, Stay cool.
Fear: Find a happy place.
Mark EVO: Geez.
(Then a ring appears)
Ash Ketchum: We're back!
Emerl: Did you miss us?
Tai & Agumon: What's up!
Sweetie Belle: There they are!
Pinkie Pie: Found them!
Kari Kamiya: Tai! Agumon!
Matt Ishida: How did you get back there?!
Raimundo: Where have you guys been?
Thomas the Tank Engine: Are the five of you okay?
Agumon: Come on.
(Ash pulls Bonnie into the ring)
(Serena gets inside the ring too)
Emily: What is going on here?
Gordon: What is this?
Emerl: You're next, Clemont.
Agumon: Grab him.
(Ash grabs Clemont into the ring)
King Dedede: What the heck?
Escargoon: What's going on?
Tai Kamiya: Come with us.
(Tai and Agumon grabs King Dedede and Escargoon)
Rouge: Where they're going?
Dave: What's with the ring?
Emerl: (Pops out of the ring) What are you waiting for everyone? Let's go. (Goes back in the ring)
Smitty: Okay, let's go.
Philmac: Ah man.
Shadow: Chaos Control!
(Team Robot members teleport where Ash, Emerl, Tai and Agumon drag the heroes into a different location)
Twilight Sparkle: We'll that was strange.
Sunset Shimmer: Yeah, that ring came out of nowhere and our friends are here and transport us here.
G-Merl: Where are we?
Armadillomon: And what is this?!
(They see Dahara City)
Clemont: Dahara City!
Bonnie: But how?
Knuckles: How did we get here?!
Tennesse Tuxedo: What the heck is that?!
Tai Kamiya: The ring.
Agumon: Tell them, Ash.
Ash Ketchum: It was this ring. It brought us here.
Emerl: Go on and show yourself to our friends.
(The ring change to a small shape and goes back to Hoopa's horns)
Hoopa: Were you surprised? Come on! Were you surprised?
Serena: Yeah, I sure was.
Kitty Katswell: I sure was too.
Applejack: We are surprised.
Cream: Same here.
Bonnie: A Pokémon?
Clemont: I've never seen it before.
Twilight Sparkle: It is a Pokémon.
Ash Ketchum: See it's name is Hoopa.
Discord: Hoopa, Nice name.
Twilight Sparkle: Oh, yeah! I've heard of Hoopa before in the history book of Pokémon.
Ash Ketchum: It tricked Chespin and Teslo into eating a Tamato Berry as a prank.
Volectro: So that's why.
Takuya Kanbara: So it was Hoopa replacing donuts to Tamato berries and that makes Chespin's and Teslo's mouth on fire, which is that bad.
Joe Kido: (In Dave's voice) What is wrong with you?!
Rainbow Dash: That's a good prank.
Disgust: You mean a not good prank.
Teslo: You burn't my mouth!
Krader: Yeah! That's not funny!
Kimiko: (Laughing) Very funny.
Christopher Thorndyke: That was a little funny.
Joy: Hi Hoopa, Nice to be Joyful!
Sora Takenouchi: Wow, look at Hoopa.
Mimi Tachikawa: It's so cute!
Scootaloo: It is cute.
Applejack: Your so adorable!
Edward: That's Hoopa.
Anna: Wow, A Ghost and Psychic type!
Honey Lemon: Hello Hoopa!
Wasabi: Looks very playful.
Fred: Now your telling.
Elsa: Nice to meet you!
Kari Kamiya: You love eating Donuts! Don't you?
Slusho: It kinda does like donuts!
(Meray and Nikolai arrives)
Meray: We're sorry you were startled.
T.K. Takaishi: That's okay.
Rouge: Yeah, it was necessary.
Kiva: There's no need to be worried.
Classic Tails: I'm sure Hoopa is just being playful.
Nikolai: What's up?
Vampos: Who is that goat?
Rigby and Mordecai: Nikolai!
Mordecai: It's good to see you!
Nikolai: Good to see you too.
Emerl: You know him?
Rigby: Yeah, he was a really cool friend of me and Mordecai and our friends in the park.
Kiva: He might be nice.
Bash: He is nice.
Discord: I have never met him before.
Skarloey: Now we do.
Emerl: Nice to meet you, Nikolai. My name is Emerl the leader of the Sega Unit Patrol Squad 1.
Nikolai: Nice to meet you too.
(Emerl and Nikolai shake their hands)
Carol: Your so nice.
Milla: Nikolai is nice name.
Nikolai: Thank you. So who are those colorful creatures?
Tai Kamiya: We like to introduce you to the Mixels.
Agumon: This is Flain, Vulk and Zorch the Infernites.
Gabumon: These are the Cragsters. Krader, Seismo and Shuff.
G-Merl: Meet the Electroids. Teslo, Zaptor and Volectro.
Elsa: This is Flurr, Slumbo and Lunk the Frosticons.
Percy: Meet the Gobba, Jawg and Chomly the Fang Gang.
Mimi Tachikawa: This is Kraw, Tentro and Balk the Flexers.
Matt Ishida: Meet Glomp, Glurt and Torts the Glorp Corp.
Tommy Himi: Meet Scorpi, Footi and Hoogi the Spikels.
Kari Kamiya: I like you to meet Magnifo, Mesmo and Wizwuz the Wiztastics.
Zoe Orimoto: There we got Niksput, Nurp-Naut and Rokit the Orbitons.
Takato Matsuki: Theses are Infernites cousins. Burnard, Meltus and Flamzer.
Izzy Izumi: This is Globert, Vampos and Boogly the Glowkies.
Davis Motomiya: This is Gox, Jinky and Kazmo the Klinkers.
Joe Kido: Meet Frosticon cousins. Krog, Chilbo and Snoof.
Cody Hida: Meet the Lixers. Spugg, Turg and Tungster.
Sora: This is Kramm, Forx and Wuzzo the Weldos.
Sonic: These are Glorp Corp Cousins. Dribbal, Gurggle and Slusho.
T.K. Takaishi: And at last but not least. Vaka-Waka, Snax and Berp the Munchos.
Tai Kamiya: You can call them Mixels for short.
Nikolai: It's really nice to meet all of you Mixels.
Rich: I'm glad you meet them.
J.P. Shibayama: Who are you ma'am?
Meray: My name is Meray. I'm taking care of Hoopa.
Lilac: It's an honor to meet you.
Joy: Your so nice. Very nice.
Zoe Orimoto: That reminds me of something.
Wuzzo: Ash's Backpack and Serena's bag.
Berp: Oh, yeah, that's right.
Spyro: We can't leave their stuffs behind.
Burnard: Hoopa bring them here.
(At the Pokémon Center a ring apppears and Hoopa grabs Ash's backpack and Serena's backpack)
(Ash puts his shirt on)
Ash Ketchum: Oh, man. I'm really thirsty wow.
Clemont: I really love a nice cool drink of water.
Joe Kido: I want cool water too.
Gomamon: I want water too.
Tai Kamiya: I'm hot, bring us a bottle of water.
Goofy: I'm thirsty too.
Donald Duck: Same here.
Hiro Hamada: I want water too.
Tails: I want water as well.
Bonnie: Yeah, water please.
Ryo Akiyama: Cyberdramon and I need water too.
Sonic: Go ahead bring us water.
Sora: Bring me water too.
Hoopa: Okay. Water, water, water!
(Hoopa brings out a ring and grew into a large size. Then a ring appears and sucks the water from the pool)
Hoopa: Water! Ali Hoopa Ring!
(Water comes out and splashes the heroes)
Hoopa: Lots of water! Lots of water!
Nikolai: No, Hoopa! That's wrong!
Meray: That's too much! They only wanted a cup of water!
(Then the water stops leaving the heroes soaked and wet)
Flain: Oh, man!
Serena: No! I'm soaking wet!
Kraw: I'm so wet!
Bonnie: Why did you do that?
Disgust: Ugh, Now you got us all wet!
Flamzer: This is a joke?
Meltus: Not funny.
Gabumon: Soaked and Unlucky.
Matt Ishida: Seriously?
Shuff: We said bottle of water!
Gox: Not the water from the pool!
Burnard: Look what you did! You make me and the Infernites and cousins lost our fire!
Teslo: Not cool!
Krader: Yeah! That's not cool!
Cody Hida: Wow, now Hoopa got us all soggy.
Armadillomon: Not nice!
Glomp: What was that for?!
Sadness: That isn't funny.
Teslo: You were suppose to bring a bottle of water!
Anger: Congratulations Hoopa, You got us all wet, First The water balloons and now you.
Sonic: Look on the bright side. We wouldn't be hot from the heat.
Scorpi: Oh yeah, Now I get it.
Clemont: Well, at least we all got cooled off.
Snoof: So to the others.
Boogly: Yeah, us too.
Seismo: You're right.
Teslo: Okay, That's funny.
Magnifo: I think it is.
Wizwuz: It sure is.
Kiva: Well, we love going for a splash in the summer!
Rigby: Next time, bring us a bottle of water instead of the water from the pool.
Eileen: Or we should just say Bottle of water.
(Nurse Joy and Wigglytuff sees the pool is empty)
Nikolai: So what are you trying to do?
Serena: Well, we we're planing to go see Dahara tower.
Vampos: That's right.
Rheneas: I can't wait to get there.
Flurr: They even say there's a mythical Pokémon in the tower.
Meray: Oh, we're going too.
Takuya Kanbara: Wow! That's kinda cool you're coming with us to see Dahara tower.
Ash Ketchum: I know.
Hoopa: Let's go together.
Bonnie: Okay. Why don't we all travel by rings.
Clemont: That's a great idea!
Knuckles: That's a very smart idea, Bonnie.
Sir Handel: What are we waiting for?
Rusty: Use the ring to transport us to Dahara Tower.
(Hoopa brings out a ring as everyone goes in and they enter Dahara Tower)
Volectro: That was easy!
Teslo: Yeah, now we wait for our friends to come.
(Back to the others)
Emerl: Alright, let's go. Lady's first.
Xion: Thanks, Emerl.
(Xion gets in the ring)
Huey: Shall we?
(Huey, Dewey and Louie gets in the ring)
Mordecai: You first, CJ.
CJ: Thank you.
Rigby: Don't forget about you.
Eileen: That's really nice of you.
(CJ and Eileen gets in the ring)
Hoopa: Hoopa, too!
Meray: Hold on!
(As Hoopa enters the ring trying to get through, but it suddenly bounces Hoopa off)
Ash Ketchum: Hoopa, you okay?
Shuff: What happened?
Cynder: I don't know?
Meray: Hoopa. How could you forget?
Davis Motomiya: Alright, I don't understand why did the ring bounces Hoopa off?
(Serena, Bonnie, Pikachu, Dedenne, Xion, CJ, Eileen Volectro and Teslo pops out of the ring)
Teslo: What's the hold up?
Eileen: What's taking you so long?
Serena: Guys. Something wrong already?
Bonnie: Hurry up already!
Pikachu: Pika, pika.
Xion: Is there a problem?
Nikolai: We need to talk about Hoopa.
(Meanwhile, Team Rocket are on the Meowth Balloon looking at Dahara city)
Meowth: Well looky what we got here. The twerp.
James: A company by Pikachu.
(Jessie's binoculars zooms in to see Hoopa)
Jessie: What Pokémon is that? Strange.
(Cut to the heroes)
Raimundo: Okay, why can't Hoopa go through?
Meray: Unfortunately, Hoopa can't travel through it's own ring just yet.
Raphael: Well that really stinks.
Donatello: Maybe someday it will travel through it's own ring soon.
Ash Ketchum: Oh, I see.
James the Red Engine: I really hate that Ring can't let Hoopa past.
Sadness: So what do we do now?
Rigby: Yeah, we can travel the ring, but Hoopa can't past through.
Ash Ketchum: That's easy will just walk.
Sora Takenouchi: Try to cheer Hoopa up by giving it something it likes, Serena.
Serena: Good idea. (She brings a box of donuts and opens it) This is will cheer you right up, then we can go.
Hoopa: Oh, wow! Donuts! (Hoopa eats the donut)
Kari Kamiya: So?
Serena: Is it good?
Hoopa: It's so yummy!
(Hoopa spins and then smiles)
Mimi Tachikawa: Hoopa is so adorable!
Sora Takenouchi: I really like Hoopa a lot!
Biyomon: Me, too!
Honey Lemon: You said it!