This is how Solus Prime and Ryan vs. Vanitas goes in My Little Pony Transformers: The Phantom Menace.
[Vanitas enters as Duel of the Fates plays]
Solus Prime: We will handle this. [takes out her Forge]
Ryan F-Freeman: [takes out his Keyblade] This is where the fun starts.
Flash Sentry: We'll take the long way.
[They head another way]
[Vanitas takes out his double-bladed Keyblade]
Ryan F-Freeman: Two blades? Cool.
Vanitas: This is cooler.
Ryan F-Freeman: Ready, Solus?
Solus Prime: I am.
[They begin battling Vanitas]
Solus Prime: Call yourself off!
Ryan F-Freeman: Thrust! Perry!
Vanitas: You call yourself a Prime? You were a records clerk when I found you. You will be dust when I'm done with you!
Ryan F-Freeman: Are you gonna talk or fight?
Vanitas: Sorry. Old habit.
[They clash through into what looks like a large room with huge generators]
Ryan F-Freeman: You are finished, Vanitas.
Vanitas: Oh we'll see. [kicks him to a lower level and turns to Solus]
[Solus and Vanitas battle it out on the bridge they are on]
[Ryan gets back up and pursues from below]
[We see Solus block a strike from Vanitas]
[Ryan jumps up to the bridge they are on and follows as the Prime and Sith Keyblade Master clash through the entrance to a room with a pit]
[After some time, Vanitas secures himself in the room with the pit, waiting for Solus, who is on the other side of the energy field, and Ryan is farther away]
[Solus takes this time to meditate and rest up her energy]
[Finally, the energy field deactivates allowing Solus passage and Ryan time to catch up]
[Solus and Vanitas continue battling]
[The energy fields activate again]
Ryan F-Freeman: Whoa.
[Solus and Vanitas continue battling until Vanitas stabs Solus through the stomach]
Ryan F-Freeman: Nooooooooo!!!!
[Solus falls down]
[Vanitas looks at Ryan]
[Ryan glares at him]
Vanitas: So. You are a Prime.
Ryan F-Freeman: I'm gonna make you pay for that.
Vanitas: Are you truly willing to compromise your own beliefs.