After the boss gets defeated, everybody starts cheering.
Super Sonic: We did it!
Tails: Yeah!
Yui: Yay! We did it!
Yui runs to Asuna and hugs her.
Asuna: Thank goodness.
Fukaziroh: Take that final boss!
Then, a light appears above everyone. It turns into a big sword which is SAO's final boss last attack bonus. It slowly falls down into Kirito's arms.
Leafa: A sword?
Kayaba's Voice: This time you have both really cleared the game, Sonic and Kirito.
Kirito: Kayaba?
Everyone looks up when he says his name.
Kayaba's Voice: Now there's just one more thing to do.
Super Sonic: Well Kirito, let's finish this, once and for all.
Kirito: Right.
Back at the dome IRL, the Fatal Scythe hits Yuna into a wall. The boss was just about to attack her, but it suddenly disappears.
Yuna: Huh?
Kirito used the sword to defeat the Fatal Scythe in just one hit. Super Sonic is right next to him. She looks and finds their real bodies sitting over to where they dove in. Super Sonic's rank changes to rank 1, and Kirito's becomes rank 2, and then Yuna's becomes rank 3.
Super Sonic: Ok Yuna, go and put on your performance.
Yuna: Ok.
Yuna heads up to the stage and begins singing. All of the players get buffed up and they all fight against the bosses, then Super Sonic speeds through, killing all of them in one hit, and Kirito is using the ranged attack ability on the sword he got to also kill them. The scan numbers start going down.
Shigemura: No. No! I was so close to reviving you, Yuna! I was almost there! Why?!
Shigemura starts crying. Then, he finds a ghost of her daughter behind.
Yuna's Ghost: Thank you Dad. From now on, I will always be in your heart.
She disappears, and Shigemura gets down on his knees. Kikuoka and his men show up. As the song finishes, Kirito and Super Sonic finally take down all of the bosses of Aincrad. Kirito sheathes his sword, and Sonic changes back to normal. They both disappear, and everyone wakes up after diving.
Kirito: Great performance, Yuna.
Sonic: You really had in rolling.
Yuna: Thank you.
Suddenly, Yuna starts glowing.
Tails: What's going on?
Yuna: The data for my body was based off of Aincrad's 100th floor boss. The language engine is what gave me the ability to move. But since the boss has been defeated, its saved data will reset. So I guess this is goodbye.
Mighty: No way!
Yuna: I really enjoyed myself. I finally got to fulfill my dream of singing in front of a massive audience. Dreams really do come true. And Asuna, I have something to return to you. The fear of death has caused you to lose your memories. But since you overcame that fear, I'm sure it will return to you.
Yuna touches Asuna's Augma and then she slowly starts to remember everything that happened in SAO. Yuna disappears. Eiji enters the dome.
Yuna's Voice: You remembered my dream, right?
Eiji begins to cry in tears. Then, everyone begins to get flashbacks of Yuna singing back in SAO.
Sonic: She's a real star.
Amy: I know. She's amazing.
A few days later, the news goes on about Ordinal Scale at Yuna's concert. Shigemura said that it was a surprise event, and he has announced that he was going to resign as CEO of the company that made the Augma. In Andrews Cafe in the real world...
Ray: Real glad you're back Klein.
Shino: You sure you're ok?
Ryoutarou: The other guys are fine too. But man, that sure was nuts. That's why I would rather stick to VR instead.
Rika: But Klein, there's a bigger chance of meeting girls through AR.
Ryoutarou: It's not a big deal. Games aren't about meeting girls anyway.
Andrew: So is that supposed to be a joke about me and my wife? You wasted the ticket I gave you, you know.
Andrew gives Ryoutarou his steak and hitting his broken arm in a cast with it.
Ryoutarou: Oww! Careful dude!
Suguha: By the way, me and Kotone brought souvenirs.
Strea: So where did you even go?
Suguha: I went to Romantic Connections Marshmallow Shimane.
Suguha takes out a box and opens it, showing them the marshmallow pastries.
Ray: Wow! Sweet!
Mighty, Ray, Ryoutarou, and Strea take a marshmallow.
Karen: So where are Kirito, Asuna, Yui, Sonic, and Tails?
Suguha: Well, Kirito, Asuna, and Yui are spending time together as a family. Seeing shooting stars.
Knuckles: Sonic and Tails are probably chilling out somewhere also.
Rika: Well, forget about them right now.
Ryoutarou: What a jerk! Kirito doesn't bother showing up to celebrate his best friend getting discharged! Same goes for Sonic and Tails!
Andrew then grabs Ryoutarou's drink.
Andrew: Ok, so I'm going to charge only you today then. Just because of that ticket.
Ryoutarou: I thought it was free! You're such a greedy merchant!
Nijika: Oh boy.
Sky: I know. It's too much.
Everybody starts laughing.
Andrew: So, I wonder if you'll meet any cute girls now that ALO's reopened.
Ryoutarou: Not a chance!
At Mt. Doudaira, Kazuto, Asuna, and Yui all have a tent set up, and they sit down together, waiting for the shooting stars.
Asuna: I never thought that the three of us would be here together.
Kazuto: I know. You remember our promise we made in Aincrad, right?
Asuna: I remember that we would give each other presents.
Asuna gives Kazuto and Yui each a present. She gives both of them small goodiebags of sweets.
Asuna: This is for you, Kirito.
Kazuto: Thank you Asuna.
Asuna: And this is for you, Yui.
Yui: Thank you Mommy.
Asuna takes out the necklace Kazuto gave to her.
Asuna: Well? Aren't you going to put it on?
Kazuto's face brightens, and he takes the necklace, and gently puts it around Asuna's neck. They both are about to kiss, but then...
Yui: Look! Shooting stars!
They all look up, and the shooting stars appear.
Asuna: Wow.
Yui: It's so pretty!
Kazuto: Make a wish, Yui.
Yui starts making her wish. Then, Kazuto and Asuna both kiss. Meanwhile, Sonic and Tails look at the shooting stars from another spot.
Sonic: Way past cool.
Tails: Yeah. We had one heck of an adventure, just like back from Aincrad.
Sonic: I know. Sure was awesome.
Amy appears.
Amy: Sonic!
Sonic: Well, let's get going Tails!
Tails: Ok!
Sonic and Tails both run away.
Amy: Wait up! Sonic!
Meanwhile, Kikuoka takes Shigemura somewhere.
Shigemura: I appreciate that I wasn't charged for any crime, but where exactly are you taking me?
Kikuoka: I was very interested in the AI that you made. It feels like I've seen how far a top-down AI can go. But I believe in something else as well. As head of the Shigemura lab, which produced Akihiko Kayaba and Nobuyuki Sugou, there is something that I would like you to see.
They arrive at a computer room, with another person in there.
Shigemura: Mr. Kikuoka, what exactly is this?
Kikuoka: Welcome to Rath.
Sonic the Hedgehog and the Black Swordsman will return.