Omega Weapon swiped at the SeeDs and the guardians with its claws. Lulu, Kimahri, Tidus and Wakka leapt backward. Rinoa, Irvine, and Zell jumped high in the air. Irvine began pumping lead into Omega. Zell back-flipped, landing against the wall and pushed off; firing straight at Omega. He unleashed a flurry of punches and kicks, all of which Omega Weapon blocked. It struck Zell against a wall with the back of its hand.

Lulu began casting spells of fire, water, ice, and lightning, and shot them off at Omega all at once. All the spells hit it in the face and Omega reeled in pain. Turning its attention to Lulu, Omega Weapon's headdress began to glow and countered her attack by firing concentrated lasers in her direction. Upon impact, the lasers began exploding all around Lulu, who was lifted out of danger by Kimahri.

"Looks like it doesn't enjoy your magic, ya?" Wakka called out.

"Then we might have a way to take it down," Lulu answered. "As long as we don't get blasted after."

Rinoa loaded her blaster edge with a large cartridge of discs. She approached Omega's side and began firing them into its side. As if by reflex, Omega swatted her with its tail, knocking her into Tidus. To avoid being stepped on, Tidus and Rinoa picked themselves up and ran underneath Omega Weapon.

Having to duck his head to move under Omega, Tidus began slashing at its underside. Omega Weapon let out a piercing shriek, and dropped onto its belly to protect itself, forcing Rinoa and Tidus out from underneath.

"Its belly!" shouted Rinoa. "Its belly is the weak point!"

"Okay, then. What's the plan?" asked Irvine.

"We need to expose its underside," said Tidus. "Surround it!"

Standing in front of Omega, Lulu once again began blasting it with streaks of elements. Learning from her first attack, Omega Weapon lifted its arms to protect itself.

Running up the wall, Tidus called out to Wakka. "Hey! I'm open!"

Wakka set him up, throwing his blitzball into the air. Tidus pushed off the wall and bicycle-kicked the ball, striking Omega across the face. There to rebound it, Wakka caught the ball and threw it straight back Omega, knocking it off balance.

"Hey, big guy," Rinoa said to Kimahri. "Give a girl a lift?"

Kimahri picked Rinoa up and the two jumped on Omega's back. Together, they started striking from behind. Omega Weapon's tail began to flex in preparation to defend itself. Seeing this, Zell jumped and grabbed the tail, pulling it down with all his might. Zell struggled to keep it under control.

"We need to get it on its back," Tidus said.

"Leave it to me," said Irvine. "I could use a boost though."

Locking arms, Irvine and Tidus jumped into the air. Tidus swung and threw Irvine up higher, next to Omega's head. Landing on its face, Irvine began unloading his gun, point-blank into the monster. This forced Omega Weapon to straighten out, standing on its two back legs. Rinoa and Kimahri slid off of its back.

Zell pulled as hard as he could, dragging Omega's tail between its legs. Omega Weapon finally fell backward onto its back, exposing its soft underbelly. Kimahri, Tidus, and Wakka all jumped on the beast's stomach and wound up for a killing blow. Kimahri lunged his lance into Omega, causing it to frantically flail its arms and legs. Wakka and Tidus were swatted away, and Kimahri was thrown clear, with his lance stuck in Omega Weapon.

"We're almost done! One last push!" Rinoa cheered.

Eyeing the situation, Zell leapt into the air and brought his heel down on the top of Kimahri's lance thrusting it straight through Omega Weapon. Letting out one final shriek, Omega began disintegrating, leaving no remains.

Once everyone had caught their breath, they all remembered what they were doing before they were interrupted. They approached what was once the door to Seymour's study. Peering in through the massive hole in the wall, they could all see that Seymour was gone.

"Where'd he go?" Zell asked.

"I don't see any windows or doors out of here," Rinoa said.

"He doesn't exactly need those things to get around," Lulu said. "It looks like he escaped."

"So where does that leave us?" Wakka asked.

"Well, officially…" Rinoa said. "Seymour is not in danger. Whether or not that's a good thing remains to be seen, but we have no reason to fight you anymore."

"Well, I'll take it," said Irvine.

"We must return to Yuna," said Kimahri.

"Oh, right," Zell said. "Squall might still be trying to kill her… if he hasn't already."

"Don't say things like that," said Wakka. "Come on, let's go!"

The seven of them backtracked through the spire and outside.