Just in case you don't know, Alastor's double in my story is the second Alastor from the first Viewtiful Joe. When you can play as Alastor, you see his twin in the level, 'The Midnight Thunder boy'. I couldn't find a name for him, so I'm just going to call him Thunder boy or Thunder for short, since it is less confusing. Also, the fight takes place in Alastor's lair from Viewtiful Joe 1.
Alastor
"You think you're stronger than me?" Thunder Boy said, with a laugh. "Your moves may be stylish, but they aren't enough to match my strength."
"I've beaten you before, what'll make this time any different?" Alastor asked. He Was still prepared to strike at any moment.
"I've gotten stronger, and I can control my powers a lot better than you. If you really want to fight, then bring it on."
Alastor took one step back, then shot out at his opponent in a full sprint. He attempted a left hook punch, but Thunder Boy dodged to the right and flew behind him. He took out his sword and used the flat side to strike Alastor. The heroic devil flew, face-first, into the ground.
"Ha! Had enough yet?" Thunder boy laughed. His sword was in the ground and he was leaning on it.
Alastor groaned, but he quickly stood back up. He withdrew his own sword and faced Thunder boy. "Ngh. You just… caught me off-guard. That's all. Now I'll show you some true swordsmanship!" Alastor charged forward and swung his sword. Thunder boy blocked it, and smiled. Alastor swung again, this time to the right. Thunder blocked. Al swung left, then downward, and then tried swinging up. Each time, he was blocked. Finally, Alastor summoned all of his strength and swung downward again, letting out a battle-cry while doing so. The sword began to gleam a purplish color as it struck Thunder's sword.
"What?" Thunder boy shouted. He was overwhelmed by Alastor's power and lost the grip of his sword. It fell to the ground and slid across the floor. "What was that?" Thunder panted.
"Ha! You dropped something?" Alastor said, with a smirk. He was unsure of where his extra strength had come from, but he knew that he had an advantage now. He charged towards Thunder boy and swung his sword, once again. Thunder Boy easily jumped over it and hovered in the air to prepare for a counter-attack, but Alastor hadn't intended to hit him. Instead, Al dived across the ground and grabbed Thunder's sword.
"No!" Thunder Boy shouted, in fury. He plunged down to attack Al, but his counter-part was too quick. In one fluid motion, Alastor had spun around and swung both swords. One of them blocked Thunder boy and shoved him away while the other slashed him across the face. The evil twin flew back and hit the ground. He instantly stood back up. He had no marks, scratches, or wounds anywhere on his body.
Thunder began to run at Alastor with one of his fists raised. Al stood his ground with both of his swords ready. Thunder boy struck with his right fist first, but was easily blocked. He then jabbed with his left, continued with round house kick and several more jabs. Each time he was blocked, he picked up speed. Eventually, all of Thunder and Alastor's movements had become blurs. Thunder then started to glow a purple color like Alastor had, but his was darker.
"Take this!" Thunder shouted. He threw a final punch at Alastor with his glowing hand and aimed at his face. Alastor held up one sword to block again, but as soon as Thunder Boy touched the blade, it shattered. Thunder continued his punch and attacked Alastor's cheek. Al flew back several feet and hit the ground hard. "Heh. You have a lot of power, but you're afraid to unleash it!" Thunder said, with a smile. He walked over to the broken sword and held his still purple hand over it. The pieces began to hover in the air and instantly fixed themselves. In less than a few seconds, the sword was as good as new. Thunder snatched it and practiced a few swings. He then pointed it at Al. "Round Trip!"
The sword flew at Alastor with amazing speed. It was definitely faster then Alastor's round trip move. Al quickly stood up and timed his move perfectly. As the sword was about to strike, Alastor preformed a backflip over it. While upside-down, Al whipped his own sword out and swung it . He sent Thunder's sword back at twice it's speed, then landed.
Thunder watched the sword approach, and at the last second, he held out his hand. The sword froze in mid-air and begun spinning. It sprouted two more swords and flew back at Alastor.
"Urgh!" Alastor shouted, in frustration. He swung his sword again and knocked the other two out of the way.
"You're not half bad," Thunder said, angrily. He then smiled. "But you're still no match for me."