Sonic Adventure 2 Comparison: 700+ Changes from Dreamcast to Gamecube (20th Anniversary special)

From the creator of:
Super Mario 64 Changes from N64 to DS and
Sonic the Hedgehog 8-bit Changes from Master System to Game Gear

The game date technically came out on June 18th - 23rd depending on region and would have been more fitting to make it live then but I'm posting this to public by nearly 2 weeks early because:

1) June 10th marks my birthday

2) I was concerned if the covid vaccine would have nasty side effects that could put me out of action sometime in June.... I had my first jab of the Pfizer Vaccine on Friday 28th May. Fortunately I'm still here with a 3.5 hour video showing you in great detail, the key differences when Sonic Adventure 2 came out for Gamecube 6 to 10 months after the original Dreamcast release.

This is a long video so take breaks when you can.
Lastly I edited the scenes where you would normally see a red cross icon as a Health Pack, I changed the colour from red to green because I don't want to redo/repost this entire video if I get into trouble from the Red Cross Organisation. One of them however was edited with Youtube's blur effect as I overlooked a small bit of correction on a 3.5 hour long video.

Here is a link of a story from the developers of prison architect after getting into trouble for using the red cross.
https://www.pcgamer.com/uk/how-the-pr...

Lastly: Timestamps.
0:00:00 - Intro
0:00:55 - Graphics and Gameplay Mechanics
0:18:50 - Level Design Sonic
0:43:13 - Level Design Tails
0:51:21 - Level Design Knuckles
1:01:20 - Level Design Eggman before Cosmic Wall
1:12:19 - Level Design Eggman's Cosmic Wall
1:34:24 - Level Design Shadow
1:49:43 - Level Design Rouge
1:57:53 - Level Design Cannon's Core
2:00:15 - Level Design Big the Cat's stage cameos.
2:12:01 - Dreamcast Browser DLC content on Chao, Skins and Kart Courses
2:21:46 - Chao World (Music, Maps, Emblems, Chao Types and Mechanics)
2:45:45 - 2 Player
3:04:19 - 2 Player Level Design
3:12:49 - Cutscenes (in timeline order)
3:34:16 - Outro (Chaolympics race ending)

Music tracks used in the following order:

Intro part = Sega AGES Nintendo Switch opening + menu theme.

Graphics = Sonic Adventure 2 Tutorial

Game Mechanics = Funky Groove Makes U Hot!? (Options) - Sonic Adventure

Level design = Most tracks are from said name when comparing the level but...

Knuckles Level design = Unknown From M.E. (Instrumental) Sonic Adventure 2
Eggman Cosmic Wall HARD part 1 = Mechanical Resonance (Final Egg) Sonic Adventure 1
Eggman Cosmic Wall HARD part 2 = Crank the Heat Up!! (Final Egg) Sonic Adventure 1
Shadow = Throw it all away instrumental, then Final Chase music during Final Chase segment.
Rouge = Fly In The Freedom instrumental

Big the Cat part 1 (HERO Stages) = Lazy Days -Livin' in Paradise instrumental Sonic Adventure 1
Big the Cat part 2 (DARK + Cannon's Core) = and... Fish Hits! Sonic Adventure 1

Dreamcast Browser Chao DLC = Image A Hero Phantasy Star Online
Dreamcast Kart DLC = Message from Nightopia Sonic Adventure 1

Chao World montage 1 = Chao Race theme Sonic Adventure 1
Chao World montage 2 = Tikal's theme Sonic Adventure 1
Chao World montage 3 = Theme of Chao Sonic Adventure

2 Player montage 1 (Modes and quality of life) = Radical Highway ACT 1 Sonic Generations 3DS
2 Player montage 2 (Action stages) = Are you brave Sonic Gems Collection
2 Player montage 3 (Shooting stages) = Chaos 6 theme Sonic Adventure 1
2 Player montage 4 (Hunting stages) = Sand Road Team Sonic Racing
2 Player montage 5 (Level design) = Hot Shelter Red Barrage Area Sonic Adventure 1

Chaolympics outro = Windmill Isle Mario and Sonic at Rio 2016 Olympic Games

Category theme jingle = Stage Clear Sonic Adventure 2
Cutscene pause/replay jingle = Game over Continue? Sonic Adventure 1 & 2