Sonic Adventure/Beta elements

This article pertains to the beta elements from Sonic Adventure.

Title
Sonic Adventure was originally titled Sonic RPG, to be released on the Sega Saturn. However, by the time the Dreamcast came out, the developers realized they would need a better system that could handle the creature Chaos.

Classic characters
Sega originally wanted the Classic forms of the characters in the game, but decided to fully use the Dreamcast's capabilities, and ultimately re-designed Sonic, Tails, Knuckles, Amy and Eggman. Models would be the same as Sonic R.

E-Series
E-103 Delta, E-104 Epsilon, E-105 Zeta originally had the same color as E-102 Gamma (except their laser-cannons that are different). This can confirm in the E-102 Gamma tutorial.

Super Sonic
Like in previous games, Super Sonic was originally going to be playable in regular stages.

It is possible this was removed for more bug fixes. There is an unused audio file within the game's data in which Tikal explains how to transform into Super Sonic.

Emerald Coast
In Sonic's gameplay, when he is chased by an orca, there were no dash panels on the docks.

In Big's gameplay, Froggy was originally in the secret passage, and Big had to catch him there instead of near the lighthouse. This is probably the reason why this secret passage exists in the first place.

Windy Valley
Windy Valley was a completely different stage in early development. There are a few screenshots showing Tails flying around in an unknown location and also some gameplay footage showing Sonic and the rest of the cast walking around in this unfamiliar environment. Even the final release's intro video and Amy's very first cutscenes show pictures of this place which was later proven to be a beta version of Windy Valley. Remnants of the stage were found within the files of the Sonic Adventure Auto-demo. Attempts to launch the level within the game itself weren't successful yet because of missing files which cause the game to crash when trying to do so. This geometry seems to be the beta version of the third section of Windy Valley which was partially used as a beta Chao Garden as well. Pre-release footage also shows that the first section had its own beta version as well and was partially recycled for the final design. Amy and Big were originally playable in this stage.

Speed Highway
Originally in the "Goin' Down" section, there weren't helicopters. The "At Dawn" section of Speed Highway was fairly different from the final release. The section was redesigned and a few parts were removed completely for yet unknown reasons.





Sky Chase Act 2
Originally, Sonic and Tails have their classic designs from Sonic R like Sky Chase Act 1, and they were supposed to use the Tornado instead of the Tornado 2, so that means that the Tornado 2 doesn't exist in the early version of the game. The Tornado 2 originally didn't transform.

Little purple enemies
Those little purple enemies of Final Egg were originally purple and yellow.

Unused Duck enemy
In the Sonic Adventure Auto-demo, an unused duck enemy was found in Final Egg.

Uppercut
Knuckles was going to use the uppercut but then was scrapped for unknown reasons.

Sky Chase Dragon
There was an unused mini-boss of a mechanical twin-headed dragon that was going to be a mini-boss in both acts of Sky Chase. It is invincible, but it follows the Tornado in flight without damaging it.

Loading screen
The loading screen was originally in the middle of the screen and had the title of the game in black and white.

Chaos Emeralds
The Chaos Emeralds originally had their design from previous games.

Station Square
Originally, each area of Station Square was going to be completely connected. Some leftovers of this attempt can still be found within the final release if the player meets certain conditions and activates debug mode: an untextured floorless version of the Casino Area can be accessed from Station Square's coastal area which loads itself as a part of it, suggesting that at some point in development the Station Square hub area was supposed to be loaded in its entirety. Also, more pedestrians were originally planned to roam around the city as evidenced in some screenshots. It is also possible to see the Casino Area by loading it up, leaving it and glitching out of the map.

Timed Train
The train was possibly going to leave and arrive without the player's boarding, but this was possibly removed because the areas would overlap.

Chao lobby (used in SA2)
This video is about SADX Prototypes. Seven minutes and twenty seconds into it you can see Omochao and the beta version of the Chao lobby.

Character select
An early character select, the game urges the player to "Choose a Buddy!". The player has to select a character by highlighting their image and pressing the A button.

Loading screen and Chao emotes
A leftover loading screen from the AutoDemo version is still exist in the game files which displays various Chao emotion icons.

Unused item bonus
A stopwatch that would have likely frozen the timer and/or enemies appear in the game files.

Tornado Health Bar
The red "Tornado" life gauge is used in both acts of Sky Chase, despite the fact that Act 2 uses the Tornado 2. As such, the blue "Tornado2" life gauge is never used.

Unused Spring Model
A spring model which resembles the spring from Sonic Jam is seen in the game files.

How to play
How to Play pictures from the Tokyo Games Show demo version of the game can be found in the game files:

Tikal unused lines
There are variety of unused lines in the "Super Sonic" storyline said by Tikal though it is still in game disc, such as:
 * A warning about the Leon Badnik and Gohla.
 * There are a huge list of unused lines that was going to said by Tikal in the Chao Garden, but were excludes as Tikal did not appear in the Chao Garden in the final version of the game.

Unused Text
The line "Now, you can play with SONIC!" is seen in game files, but it is unused in the gameplay of the Dreamcast because Sonic is unlocked from the beginning. However, in some cases on the Gamecube and the old PC version, the line appears when completing others' storylines, if Sonic's story is unfinished.

Unused cutscene
An unused cutscene can be found for E-102 Gamma, which is implied to have been played after failing to complete Final Egg.

Eggman and Tikal
Dr. Eggman and Tikal objects used in the cutscenes are actually programmed the same way as the playable characters, and can be played via hacking, though they cannot be used completely.

Spring in Emerald Coast
Through certain glitches, other characters can access Sonic's segment of Emerald Coast. Completing the first part of the stage dumps the character into a void outside the playable level where a single Spring can be seen. This is actually the default starting point for characters other than Sonic, but the purpose of the Spring is unknown. With a well-timed Spin Dash, it is possible to jump so far that the Spring can be seen.

Blocked Passage in Casinopolis Sewers
Right at the start of the "Dilapidated Way" in Casinopolis, there is a passage up to the right. Although it is clearly visible, it is out of the way and cannot be accessed by Sonic or Tails,due to an invisible wall. It goes on for some time, twisting and turning, but abruptly hits a dead end. Its purpose is unknown though it resembles the other tunnels found in the same area.

Hidden Blocks in Mystic Ruins
Underneath the ground near the waterfall in Mystic Ruins, there is a row of fifteen blocks which are normally never seen.

Triangle
In the area where the player meets Tikal in the past, there is a triangle hidden inside the Shrine of Knuckles's race.

Unseen Ads
In the second section of Station Square, there are two ads which are positioned outside of the boundaries of the Adventure Field.

Sonic's pose
There is an unused pose that can make Sonic turn his head. On the character select, he will face his left, but during gameplay he will try to look towards the camera. This is cannot be done on the Dreamcast's controller since it does not have the required buttons to recover it. This is only possible with other types of Joysticks.

Perfect Chaos
There is unused attack used by Perfect Chaos in the game files where Perfect Chaos forms a small arm from the floods to attack Super Sonic with. However, the attack is not fully finished.

Trivia

 * In the final version of the game, there are some leftovers from the beta that were surprisingly not deleted and can still be seen without using any tools or software. These are likely developer oversights since the game has gone through a number of revisions:
 * When Amy is remembering "her old times" the beta version of Windy Valley can be seen.
 * In the mini-game Hedgehog Hammer, Eggman's objectives are in his classic version.
 * In Sonic's pinball table located in Casinopolis, the images of Sonic, Tails, Knuckles, Amy and Eggman that are in the slot machine are in their classic styles.
 * In Gamma's tutorial gameplay, E-104 Epsilon has Gamma's color design (except for his laser cannons).
 * In Sonic's tutorial gameplay, the beta version of Windy Valley can be seen in the screenshots.