Rescuing Celestia, Luna and Cadance/Gathering Twilight Sparkle and her friends

Here is how SpongeBob SquarePants rescued the princesses in The Overlord's Revenge.

At last, SpongeBob prepared his actual dummy replicas of the princesses.

SpongeBob SquarePants: Here goes nothing.

Just as Tempest used one the orbs, SpongeBob used the first dummy of Princess Cadance.

Princess Celestia: Cadance!

Soon, Cadance was brought to the group by SpongeBob.

SpongeBob SquarePants: Are you okay, Cadance?

Princess Cadance: I'm fine. But how'd you know my name, do I know you?

Cragger: SpongeBob, I hope you know what you're doing.

SpongeBob SquarePants: Don't worry, Cragger, I've got it under control. Keep Cadance safe.

Gorzan: You got it, Sponge Dude.

So, SpongeBob brought out another dummy to save the next princess.

Tempest Shadow: (grunts)

Princess Celestia: Luna, quick! Go south beyond the Badlands!

Princess Luna: (nodded) Hmph!

Tempest Shadow: (grunts and kicks the next orb)

Princess Celestia: Seek help from the Queen of the Hippo...

Before she could finish her sentence, another dummy has replaced Princess Celestia.

SpongeBob SquarePants: You're safe now, Princess Celestia.

Princess Celestia: But what about my sister?

SpongeBob SquarePants: No worries, I've gotcha covered!

Just as Princess Luna took off, Tempest kicked another orb as SpongeBob used the last dummy to replace her.

Tempest Shadow: (grunts) You're kidding me!

SpongeBob SquarePants: Perfect, that's all the princesses.

Princess Luna: But what about Twilight Sparkle?

SpongeBob SquarePants: Oops.

Kai: Go, we'll stay and watch over the princesses.

Just as the three Storm Guards sneak up on them, Jay notices them already.

Jay: Let me deal with them. Ninja go! (used his Lightning Spinjitzu to take them out)

At last, SpongeBob used the last dummy to replace Twilight with it.

Tempest Shadow: Easy as pie.

Grubber: Oh, I love pie.

Just that Tempest figured that SpongeBob got in the way, she was more ticked off.

Tempest Shadow: They're all just dummies!

Grubber: Boy, didn't see that coming.

Tempest Shadow: Get them now!

Grubber: (to the Storm Guards) Guyth, we gotta get the Princesses!

As Wyldstyle gets her SuperCycle ready to escape from Canterlot, Po brought out the Mech.

Po: Come on, we have to get Twilight and her friends!

Emmet Brickowski: Hurry!

So, they gathered Twilight and her friends including Spike, Sunset Shimmer, Starlight Glimmer and the Cutie Mark Crusaders.