This is how Destruction of the Space Bridge goes in Darkness Rising Part 5.
Twilight Sparkle: Ready, Optimus?
Optimus Prime: Ready.
[Twilight uses her magic to copy the Elements and changes the copied Elements' shapes into Autobot symbols, each with the Autobots individual colors]
Bumblebee: [beeps] (translation: Generosity!)
Optimus Prime: Magic!
[The ponies watch in awe]
Starscream: What is it, Soundwave?
[Soundwave plays a recording of what's happening]
Starscream: Lord Megatron, the Autobots are up to something.
Megatron: How is this possible?!
[Megatron flies to the Spacebridge and lands in front of Optimus]
Optimus Prime: One shall stand, one shall fall.
[Optimus Prime and Megatron battle]
Megatron: I will crush you all, just like I did with the Protectors of the Spirits of the Elements of Harmony.
Optimus Prime: Oh no, Megatron. We are them. [his Autobot insignias glow]
Megatron: You've got to be kidding!
Optimus Prime: No. We aren't.
Megatron: Where did you get this power?
Optimus Prime: You think you can bring down Equestria with a horde of Terrorcons just like that. Well, you're wrong. Cause the Protectors of the Spirits of the Elements of Harmony are right.... here!
[Elements of Harmony start lighting up]
Optimus Prime: Bulkhead, who knows when to help ponies when they are in doubt, represents the Element of Honesty. Ratchet, who helped Fluttershy get back on her hoofs in combat, represents the Element of Kindness. Smokescreen, who taught us Pinkie's ways of dealing with fear, represents the Element of Laughter. Bumblebee, who keeps an eye on his friends no matter what, represents the Element of Generosity. Arcee, who knows what to do in the most toughest of times, represents the Element of Loyalty. And I, Optimus Prime, who taught Twilight the ways of the Cybertronian life, represent the Element of Magic.
[Optimus Prime throws a few punches on Megatron]
[The Autobots and Ponies watch in amazement as Optimus Prime gains the upper hand on Megatron]
Optimus Prime: RARGH!
[Optimus Prime and Megatron then engage in a sword fight, which Optimus slices Megatron's sword. Optimus Prime then throws one more punch at Megatron and Megatron falls to the ground in defeat]
Optimus Prime: So you see, Megatron.
Optimus Prime: That's what happens when everyone comes together.
Megatron: You may have won this time, Prime. But I'll be back.
[Megatron transforms and flies away]
Megatron: Starscream, my army approaches. Rendevouz with the Space Bridge for pick-up.
Starscream: As you command.
Twilight Sparkle: They're moving.
Rainbow Dash: Now's the time guys!
Optimus Prime: Everyone, NOW!
[The Autobots and Ponies use the Elements of Harmony on the Space Bridge]
Megatron: Starscream, where is my ship?!
Starscream: We would never make it, Lord Megatron. Don't be a fool! Take flight and retreat!
Ratchet: Groundbridge ready for you.
Optimus Prime: Everyone, jump!
[Everyone jumps into Groundbridge]
Megatron: My legion. [sees the Space Bridge about to blow up] No!
[Megatron reaches for a Terrorcon's hand but is caught in the explosion. On the Nemesis]
Starscream: Decepticons. It is with deep sorrow that I note for the log. Megatron's spark has been extinguished. All hail Starscream.