This is the script for Big's story in Sonic Adventure: Chaos Unleashed.
The Frog with the Tail
[The story begins with Angel Island from a very far distance falling down the skies. The ground shakes as the island falls, which wakes up Froggy. Froggy spots a puddle which happens to be Chaos. Froggy bites off Chaos' tail causing him to grow his own tail. Big wakes up and spots Froggy.]
Big: Huh... er... wha? Froggy, is that you? You're lookin' kinda weird, good buddy. [Looks at Froggy's tail.] What's up with the tail?
[Froggy goes to the hut and swallows the Chaos Emerald.]
Big: Hey, wait a minute! You swallowed my lucky charm.
[Froggy runs away.]
Big: Come back here... What's wrong with you? Something's not right. We've always been friends... for years. [goes after Froggy] Froggy! Wait up! Oh dear!
In Station Square
[Big is in Station Square]
Big: Yoohoo! Froggy! Come out, come out wherever you are! Oh man, where could my Pollywog Pal be, anyway?
Under the Car
[Big sees Froggy hopping on the sidewalk.]
Big: Froggy! There you are! [Sees Froggy who is going under the car] Wait, don't run away! What cha' doin' under that car? What's wrong? [Sees Froggy going down the sewer] He went down the sewer! I better go get him!
[Big sees Froggy going to the train station.]
Big: Uh-oh! Froggy's getting away!
Tails and Froggy
[Big is at the Mystic Ruins and sees Tails holding Froggy.]
Big: Froggy has to be here somewhere.
[He sees Tails holding Froggy.]
Big: Oh no, he's got my little buddy!
[Tails sees Big running towards him and Froggy, trips over a branch in front of them.]
Big: Waaaaaaahhhhh! Ugh! Ugh!
Big: Glad I found you!
[Froggy frees himself from Tails' grasp and leaves.]
Big: [Chases Froggy.] Awwwww, now what am I gonna do?
Leaping to the Hotel
[Big sees Froggy going to the hotel.]
Big: I won't give up on finding Froggy!
[After clearing Emerald Coast...]
Big: [Holding Froggy] I won't ever lose you again, little pal. Not this time.
[Gamma appears and takes Froggy.]
Big: Froggy? [notices that Froggy is being captured by Gamma] Uh oh! [Chases Gamma as he escapes] NO, hold on there! Come back, please! Give me my friend back! I'm beggin' ya, please!
[Big finds Gamma entering Eggman's base.]
Big: This must be where the robot was at. Gotta go inside!
[We are taken to the launching site of the Egg Carrier where Big sees Gamma going inside the Egg Carrier.
Big: Gotta hurry! I'm coming, Froggy! [Rushes inside before it launches.]
Inside the Egg Carrier
[Big is inside the Egg Carrier.]
Big: Froggy? This place doesn't look familiar to me at all... [Sniffing] Hmm, smells like Froggy's around somewhere. Think I'll see what's behind this door!
In the Aquarium
[Big enters Hot Shelter and soon enters a central area surrounded by aquariums.]
Big: [spots Froggy in one of the aquariums] Aaaah! There's Froggy! Looks like he needs my help!
To the Past
[After clearing Hot Shelter...]
Big: [Holding Froggy] Yes! We're together again at last, heh?
[A light shows up and surrounds Big and Froggy.]
Big: Huh? That's strange!
[Big is transported to the Master Emerald shrine in the past.]
Big: Where am I? Froggy?
Tikal and the Altar
[Big sees Tikal gazing at the altar.]
Tikal: Wow! Is it alright for me to be here? So do you... Trust me? So these are the 7 Emeralds... [Walks up to the altar and discovers the Master Emerald; Big follows] [gasp] ! ? Could it be? The servers are... the 7 Chaos Emeralds... Unified by one that is the controller... The 7 Chaos... The controller itself... Could this be the Emerald that controls the 7 Chaos?
[The screen fades to white.]
Escaping the Egg Carrier
[Big returns to the Egg Carrier.]
Big: Froggy! I don't like the looks of this place!
[The Egg Carrier shakes.]
Big: If something happens now... There's no point to my rescuin' you. I don't know who would bother to save us both. We better get going, buddy!
[Big sees Chaos 4.]
Big: A shark? It belongs to the water!
[Eggman with Orbot and Cubot appears in his Egg Mobile.]
Eggman: So! I see you're trying to escape! I'm right on time.
Big: I won't let you have Froggy, weird-looking mustache man!
Eggman: Chaos! Grab him. Get that frog! And don't forget the Chaos Emerald.
[Froggy begins to spit out the Chaos Emerald.]
[Froggy spits out the Chaos Emerald and Chaos absorbs it; Eggman also throws the other Emerald to Chaos who also absorbs it; Chaos is now Chaos 6]
Orbot: What's this?
Big: My lucky charm!
Cubot: Chaos is the shape of a frog!
Eggman: All right! And now for the frog. The frog is possessed by your tail. Once you get your tail, you'll be complete and ultra strong.
[Chaos absorbs Froggy and Chaos gains his tail back.]
Big: So that must be why Froggy was acting so strange.
[Sonic arrives and sees Chaos 6.]
Sonic: Unbelievable! Look what happened! Chaos has transformed again.
Eggman: Hahahaha! This is music to my ears!
Big: Froggy! I'll save you... Don't worry pally.
Sonic: So he's your friend, eh? No sweat... I'll get him back! Watch me!
Big: Oh, thanks.
Eggman: Hahaha! Not only have I found 6 Chaos Emeralds, but I've also found Chaos' missing tail! And I'm just one more Emerald away for Chaos to tear apart Station Square in case you weren't aware!
Sonic: Well, I'll stop you before it even happens!
Eggman: Ha! You insolent fool! Even when he's close to perfection, you're still no match for Chaos! Now, Chaos, take out the blue pest and the fat cat!
Big: [Holding his lure] Careful Froggy! Don't worry. We'll get ya back!
[After rescuing Froggy...]
Big: [Holding Froggy] Hoo-ray! Froggy, heh heh heh heh, I won't let them take you away again.
Sonic: Go! Go on and get outta here! I'll do the rest.
Big: Oh, okay... Thanks! Come, little buddy. Time to get a move on.
Escape with the Tornado 2
[Big finds the Tornado 2]
Big: Huh... er... what? Hey, maybe we could use this? But I don't know the first thing about it. Oh well, I'll give it a try anyway.
[Big gets on the Tornado 2; as he leaves, the Egg Carrier explodes.]
[Big and Froggy arrives to the Mystic Ruins jungle.]
Big: What a crazy adventure, Froggy! At first, I thought you were running away from me, but it was the water that was inside you. Then we fought that monster and I lured you back. Then we got out with the plane and that ship exploded. Glad we're back home! How about you, Froggy?
Froggy: [Ribbits happily]
Big: I knew you'd be happy. Come on. Let's find some fish!
[Big and Froggy celebrate; the scene turns to the Tornado 2 with the Chaos Emerald inside.]