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Difference between revisions of "Sonic Adventure/Hidden content"

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m (→‎Eggman and Tikal)
m (Text replacement - "{{UnusedTable|" to "{{UnusedTable|type=Art|")
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−
==Lost Graphics==
+
{{back}}
−
{|class="prettytable"
+
{{Outdated}}
−
!Artwork||Name||Description
 
−
|-
 
−
|[[Image:Sa1protoitem_tstop.jpg|center]]||Time Stopper Item||This may have been a time-stopping item with a similar effect to [[Chaos Control]].  It also could have been related to [[E-102]]'s levels in some way, which were based around a countdown timer.
 
−
|-
 
−
|[[File:Al icon04z.png]] [[File:Al icon07z.png]] [[File:Al icon08z.png]] [[File:Al icon09z.png]]||Lost [[Chao]] Emoticons||These would have appeared over the Chao's head but do not appear in normal gameplay. Found in AL_ICON.PRS.
 
−
|-
 
−
|[[File:ST 128S HPGEJI.png|center]]||Tornado Life Gauge Graphics||The red "Tornado" life gauge is used in [[Sky Chase Act 1]] and [[Sky Chase Act 2]].  However, when Tails transforms the [[Tornado]] into the Tornado 2, it still uses the same life gauge.  This blue "Tornado2" gauge is never used. Found in ST_128S_HPGEJI.PVR.
 
−
|-
 
−
|[[Image:Sajamspring.png|center|150px]]||''[[Sonic Jam]]'' spring model||This spring model is never used in the game, but looks like the one from ''Sonic Jam''<nowiki>'</nowiki>s ''[[Sonic World (level)|Sonic World]]''.
 
−
|}
 
  
−
==E-105 is built of Dreamcasts==
+
==Clean pause==
−
[[File:E105.png|320px]]
+
{{HiddenContent
 +
| image1=
 +
| desc=In any mode, pause the game and hold {{X}} + {{Y}} to clear the game of the pause menu.
 +
}}
  
−
Some textures used for [[E-105]] are actually Dreamcasts.
+
==Unused content==
 +
===Art===
 +
{{UnusedTable|type=Art|
 +
{{UnusedRow
 +
| sprite={{SpriteImage|Sa1protoitem_tstop.png}}
 +
| desc=An [[Item Box]] designed to stop time? Its use is unclear, however it may have assisted [[E-102 Gamma]]'s time-limited levels.
 +
}}
 +
{{UnusedRow
 +
| sprite={{SpriteImage|Al icon04z.png}} {{SpriteImage|Al icon07z.png}} {{SpriteImage|Al icon08z.png}} {{SpriteImage|Al icon09z.png}}
 +
| desc=These would have appeared over a [[Chao]]'s head, but they do not appear in normal gameplay. Found in AL_ICON.PRS.
 +
}}
 +
{{UnusedRow
 +
| sprite={{SpriteImage|ST 128S HPGEJI.png}}
 +
| desc=The red "[[Tornado]]" life gauge is used in both [[Sky Chase Act 1]] and [[Sky Chase Act 2]]. The Tornado 2 has its own blue gauge on the disc, but the graphics are never used. Found in ST_128S_HPGEJI.PVR.
 +
}}
 +
}}
 +
===Models===
 +
{{UnusedTable|type=Art|
 +
{{UnusedRow
 +
| sprite={{SpriteImage|Sajamspring.png|0.5}}
 +
| desc=A [[spring]] model from ''[[Sonic Jam]]''. ''Sonic Adventure'' was built on the engine seen in the [[Sonic World (level)|Sonic World]] section of ''Sonic Jam'', but this is the only ''Sonic Jam'' asset to be found on the Dreamcast disc. Its texture is also otherwise unused - other objects (Springs etc.) use a different, more detailed version instead.
 +
}}
 +
}}
  
−
==Removed Cowgirl Billboard==
+
===Beta title screen===
−
[[Image:Cowgirl.png|320px]][[Image:O COWGIRL.png|320px]]
+
{{HiddenContent
 +
| image1=Beta title0.png
 +
| desc=Found in TITLE.PRS, it appears a specifically-labelled "beta" version of ''Sonic Adventure'' existed at one point.
 +
}}
  
−
For unknown reasons, a cowgirl billboard from [[Casinopolis]] that was present in the first version of ''Sonic Adventure'' in Japan was removed from other releases. This includes the Japanese re-release called ''[[Sonic Adventure International]]''. It may have been removed due to it being rather provocative.
+
===[[sega:Tokyo Game Show '98 Autumn|Tokyo Game Show '98 Autumn]] leftovers===
−
 
+
A build of ''Sonic Adventure'' was available to play at [[sega:Tokyo Game Show '98 Autumn|Tokyo Game Show '98 Autumn]]. Japanese instructions on how to play the game remain in most versions of the game.
−
==Beta Title Screen==
+
<gallery>
−
[[File:Beta title0.png|320px]]
+
Image:TGS SOUSA S.png|Sonic's instructions
 +
Image:TGS SOUSA S(2).png|Sonic's instructions part 2
 +
Image:TGS SOUSA T.PRS.png|Tails' instructions
 +
Image:TGS SOUSA T(2).PNG|Tails' instructions part 2
 +
Image:TGS SOUSA K.png|Knuckles' instructions
 +
Image:TGS SOUSA K(2).png|Knuckles' instructions part 2
 +
Image:TGS SOUSA A.png|Amy's Instructions
 +
Image:TGS SOUSA A(2).png|Amy's Instruction part 2
 +
Image:TGS SOUSA B.png|Big's Instructions
 +
Image:TGS SOUSA B(2).png|Big's instructions part 2
 +
Image:TGS SOUSA E.png|E-102's instructions
 +
Image:TGS SOUSA E(2).png|E-102's instructions part 2
 +
</gallery>
  
−
A prototype Title screen was found inside the disc. Found in TITLE.PRS.
+
===Old character select screen===
 +
Also found on the disc are six images which make up an older character select screen. Incidentally, "Choose Your Buddy" is also the name of the song used on the character selection screen. These screens were likely shown at the aforementioned Tokyo Game Show, but potentially other builds as well.
  
−
==Old Character Select Screen==
+
Found in C_SELECT1.PRS and C_SELECT2.PRS.
 
<gallery >
 
<gallery >
 +
File:Tgs chrsel s0.png
 +
File:Tgs chrsel t0.png
 +
File:Tgs chrsel k0.png
 
File:Tgs chrsel a0.png
 
File:Tgs chrsel a0.png
 
File:Tgs chrsel b0.png
 
File:Tgs chrsel b0.png
 
File:Tgs chrsel e0.png
 
File:Tgs chrsel e0.png
−
File:Tgs chrsel k0.png
 
−
File:Tgs chrsel s0.png
 
−
File:Tgs chrsel t0.png
 
 
</gallery>
 
</gallery>
  
−
Six images were found in the game that appear to be a old character select screen. ("Choose Your Buddy" as seen in these pictures is the name of the song on the soundtrack that plays on the character selection screen.) Found in C_SELECT1.PRS and C_SELECT2.PRS.
+
===Loading screen===
 +
{{HiddenContent
 +
| image1=Loading822a.png
 +
| desc=This prototype loading graphic is used in [[Sonic Adventure AutoDemo|AutoDemo]], but not in the final game. Found in LOADING.PRS.
 +
}}
 +
 
 +
==="Real Sonic"===
 +
{{HiddenContent
 +
| image1=Sa1protobluehedgehogad.png
 +
| desc=[[Sonic Team]] took plenty of photos of the ''Sonic Adventure'' development process. Many of these are included on the original Japanese version's disc for the website, but in the western release only two remain - "DRAMA0" and "DRAMA1".
 +
}}
 +
 
 +
===Voice clips===
 +
Through digging, several unused [[Tikal]] voice clips were found inside the game.
 +
* {{file|SAsupersonic.zip|Tikal talks about Super Sonic}} - This indicates that Super Sonic was meant to be usable in regular levels. It is also possible that the player was once required to manually collect the Chaos Emeralds before the Perfect Chaos boss, and this voice clip explained what to do afterwards.
 +
* {{file|SAleon.zip|Tikal tells you about the Leon badnik}}
 +
* {{file|SAgolah.zip|Tikal talks about "Golah"}}
  
−
==Beta Loading Screen==
+
There are also several clips that can be found that discuss the Chao Gardens, some of which include information inconsistent with how the final game works ("Don't put more than six Chao in a garden" and its variations, for example).
−
[[File:Loading822a.png]]
 
  
−
A prototype loading screen was found inside the disc. Found in LOADING.PRS.
+
===Removed levels===
 +
{{LinkRetro|post=652522|title=A Japanese level list}} was discovered in the PC version of ''Sonic Adventure DX'', and later in regular ''Sonic Adventure''. This list contains names for three levels that do not exist in the final version: "Mushrooms" (きのこ), "Jungle" (ジャングル) and "Desert" (砂漠).
  
−
==Sky Chase Dragon==
+
===Sky Chase dragon===
 
[[Image:SAdragonmodel.png|320px]][[Image:SAdragon.png|320px]][[Image:DCdragon.png|320px]]
 
[[Image:SAdragonmodel.png|320px]][[Image:SAdragon.png|320px]][[Image:DCdragon.png|320px]]
  
−
In ''[[Sonic Adventure DX: Director's Cut (preview)]]'', the object for the unused two-headed Sky Chase Dragon boss was found by [[evilhamwizard]].[http://forums.sonicretro.org/index.php?showtopic=10011&view=findpost&p=181042] Later on, [[Polygon Jim]] was able to load it up in the Dreamcast version. The model viewer used to find him has all the polygons stacked together in one place so it doesn't look right. The first image shows what was found, the second image shows how he should look when properly assembled, textured, and colored, and the third image shows how he looks in game in the Dreamcast version, placed by hacking the game's [[SCHG:Sonic Adventure/Object Editing|SET files]]. This dragon also exists in the PC version of Sonic Adventure DX (confirmed by [[MainMemory]]), and likely in the GameCube version as well.
+
One of the more curious absentees in ''Sonic Adventure'' is a giant two-headded dragon once set to appear in [[Sky Chase Act 2]]. It features in development screenshots and was briefly seen at the Tokyo International Forum unveiling, but is missing in the final game.
 +
 
 +
The object does exist (having originally been found in [[Sonic Adventure DX: Director's Cut (preview)]]{{ref|1=http://forums.sonicretro.org/index.php?showtopic=10011&view=findpost&p=181042}}), but the polygons are not linked up properly in the final build. The first image shows what was found, the second image shows how he should look when properly assembled, textured, and colored, and the third image shows how he looks in game in the Dreamcast version, placed by hacking the game's [[SCHG:Sonic Adventure/Object Editing|SET files]].
 +
 
 +
The dragon continues to exist in ''[[Sonic Adventure DX]]''.
 +
 
 +
===Eggman and Tikal===
 +
The [[Dr. Eggman]] and [[Tikal]] objects used in cutscenes are actually programmed the same way as the playable characters, and can be played as with hacking. They both have only the most basic movement functions, walking and jumping. They can't hurt or get hurt by enemies and obstacles, and cannot run on wind paths and some loops.
 +
 
 +
Pressing the action button activates the free movement mode which is normally only active when debug is on. Dying before hitting a [[checkpoint]] or changing segments in an [[Action Stage]] causes the game to crash, as they do not have starting position lists.
 +
 
 +
Alternatively, when using a moon jump cheat code during a Tikal flashback, Tikal will jump as well.
 +
*[http://www.youtube.com/watch?v=YGebZNZ2QEI Eggman in Tails' Windy Valley]
 +
*[http://www.youtube.com/watch?v=08nS4gJFLZs Tikal in Knuckles' Speed Highway]
 +
 
 +
==Hidden areas==
 +
===Final Egg hidden room===
 +
{{HiddenContent
 +
| image1=SAFinalEggHiddenDoor.jpg
 +
| desc=A small hidden corridor can be accessed behind the door pictured in the above image. To reach it, the player needs to start a [[Spin Dash]] on the edge of the bridge facing it. At the bottom of the corridor the camera stops, so the player has to rely on the first person camera to look at the surrounding environment. At the end is a dead end where the player cannot return. If a glitch is used to get Knuckles into Sonic's Final Egg, Knuckles can also access this area if done correctly.  
  
−
==Final Egg Hidden Room==
+
This was planned to be used as a transition to the area Sonic's scene with the Egg Viper takes place in, being the original location of the goal. The goal was eventually moved back and the map was no longer needed, so the area was covered up. The camera for this transition is still intact and can be seen if the player walks up to the covered entrance.
−
[[Image:SAFinalEggHiddenDoor.jpg|320px]]
+
}}
  
−
A small hidden corridor can be accessed behind the door pictured in the above image. To reach it, the player needs to start a [[Spin Dash]] on the edge of the bridge facing it. At the bottom of the corridor the camera stops, so the player has to rely on the first person camera to look at the surrounding environment. At the end is a dead end where the player cannot return.
+
===Hidden Casinopolis corridor===
 +
{{HiddenContent
 +
| image1=SAHiddenCasinopolis.jpg
 +
| desc=In the ceiling above this area and behind the striped object, Tails can fly to a unused corridor. When flying out, a strip of land will become visible.  When Tails lands on it, he will go through the ceiling. This hidden part of the level seems to be fairly complete as there are monitors and rings.
 +
}}
  
−
==Hidden Casinopolis Corridor==
+
==Other secrets==
−
[[Image:SAHiddenCasinopolis.jpg|320px]]
+
===E-105 is built of Dreamcasts===
 +
{{HiddenContent
 +
| image1=E105.png
 +
| desc=Some textures used for [[E-105]] are actually Dreamcasts.
 +
}}
  
−
In the ceiling above this area and behind the striped object, Tails can fly to a unused corridor. When flying out, a strip of land will become visible. When Tails lands on it, he will go through the ceiling. This hidden part of the level seems to be fairly complete as there are monitors and rings.
+
===Removed cowgirl billboard===
 +
{{HiddenContent
 +
| image1=Cowgirl.png
 +
| image2=O COWGIRL.png
 +
| desc=This potentially provocative cowgirl billboard from [[Casinopolis]] is only used in the Japanese version of the game, being removed for unknown reasons in Western releases, ''[[Sonic Adventure International]]'' and ''[[Sonic Adventure DX]]''.
 +
}}
  
−
==Real Sonic==
+
==Mistakes & Leftovers==
−
[[Image:Sa1protobluehedgehogad.png|320px]]
+
Note: Can we get some screenshots?
 +
===Object Layouts===
  
−
This was most likely a joke image. It is found within the disc, but is not accessible normally.
+
====Early [[Speed Highway]] Act 2 Layout====
 +
Far below Speed Highway Act 1 you can find a bunch of helicopters and a capsule, applying the object layout to Act 2 will reveal a early layout.
  
−
==Tokyo Game Show - How-to-Play==
+
====Sonic's [[Twinkle Park#Fakery Way|Fakery Way]]====
−
<gallery>
+
Even though Sonic doesn't go through [[Twinkle Park]] Act 3 he has a layout for it which is actually very old as the wrong objects show up.
−
Image:TGS SOUSA T.PRS.png|Tails' Instructions
+
 
−
Image:TGS SOUSA T(2).PNG|Tails' Instructions part 2
+
====Sonic's [[Hot Shelter]]====
−
Image:TGS SOUSA S.png|Sonic's Instructions
+
Sonic also has a layout for [[Hot Shelter]] even though he also doesn't goto the stage and it's also very old.
−
Image:TGS SOUSA S(2).png|Sonic's Instructions part 2
+
 
−
Image:TGS SOUSA K.png|Knuckles' Instructions
+
====Big's [[Emerald Coast]] leftovers====
−
Image:TGS SOUSA K(2).png|Knuckles' Instructions part 2
+
As Big by using no clip mode you can get to the island used for his cutscene but even going even further reveals leftover objects from Sonic's level.
−
Image:TGS SOUSA E.png|E-102's Instructions
+
 
−
Image:TGS SOUSA E(2).png|E-102's Instructions part 2
+
Interestingly this seems to match the layout of the [[Sonic Adventure AutoDemo|AutoDemo]].
−
Image:TGS SOUSA B.png|Big's Instructions
+
 
−
Image:TGS SOUSA B(2).png|Big's Instructions part 2
+
These were removed in [[Sonic Adventure DX: Director's Cut|SADX]].
−
Image:TGS SOUSA A.png|Amy's Instructions
+
 
−
Image:TGS SOUSA A(2).png|Amy's Instruction part 2
+
==Cheat device codes==
−
</gallery>
+
These are cheat codes that can only be used with game enhancer devices.  
−
Within most versions of Sonic Adventure remain How-to-Play pictures from the TGS version of the game. There are no English versions of these files.
+
=== Codebreaker ===
 +
====Unofficial codes====
 +
===== USA Game =====
 +
{|class="prettytable"
 +
! Code||Description
 +
|-
 +
|01752BDC 00000000
 +
|Debug Menu 1.0.
 +
|-
 +
|01756C5C 00000000
 +
|Debug Menu 1.1.
 +
|}
 +
 
 +
===== E3 Game =====
 +
{|class="prettytable"
 +
! Code||Description
 +
|-
 +
|01753CBC 00000000
 +
|Debug Menu.
 +
|}
  
−
==Unused voice Clips==
+
===== PAL Game =====
−
Through digging, several unused [[Tikal]] voice clips were found inside the game.
+
{|class="prettytable"
−
* {{file|SAsupersonic.zip|Tikal talks about Super Sonic}} - This indicates that Super Sonic was meant to be usable in regular levels. It is also possible that the player was once required to manually collect the Chaos Emeralds before the Perfect Chaos boss, and this voice clip explained what to do afterwards.
+
! Code||Description
−
* {{file|SAleon.zip|Tikal tells you about the Leon badnik}}
+
|-
−
* {{file|SAgolah.zip|Tikal talks about "Golah"}}
+
|01752B1C 00000000
 +
|Debug Menu.
 +
|}
  
−
There are also several clips that can be found that discuss the Chao Gardens, some of which include information inconsistent with how the final game works ("Don't put more than six Chao in a garden" and its variations, for example.)
+
===== JAP Game =====
 +
{|class="prettytable"
 +
! Code||Description
 +
|-
 +
|0175B740 00000000
 +
|Debug Menu.
 +
|}
  
−
==Removed Levels==
+
===== International Game =====
−
[[MainMemory]] discovered {{LinkRetro|post=652522|title=a Japanese level list}} in the PC version of the game, and later in the Dreamcast version as well. This list contains names for three levels that do not exist in the final version: "Mushrooms" (きのこ), "Jungle" (ジャングル) and "Desert" (砂漠).
+
{|class="prettytable"
−
==Eggman and Tikal==
+
! Code||Description
−
The [[Dr. Eggman]] and [[Tikal]] objects used in cutscenes are actually programmed the same way as the playable characters, and can be played as with hacking. They both have only the most basic movement functions, walking and jumping. They can't hurt or get hurt by enemies and obstacles, and cannot run on wind paths and some loops. Pressing the Action button (A on keyboard) activates the free movement mode which is normally only active when debug is on. Dying before hitting a [[checkpoint]] or changing segments in an [[Action Stage]] causes the game to crash, as they do not have starting position lists. But when using a Game Genie's moon jump during a Tikal flashback, she jumps. The same doesn't apply to Dr. Eggman.
+
|-
−
*[http://www.youtube.com/watch?v=YGebZNZ2QEI Eggman in Tails' Windy Valley]
+
|0175455C 00000000
−
*[http://www.youtube.com/watch?v=08nS4gJFLZs Tikal in Knuckles' Speed Highway]
+
|Debug Menu.
 +
|}
  
−
{{SAOmni|2}}
+
==References==
 +
<references/>
  
−
[[Category:Game secrets|Sonic Adventure]]
+
{{SAOmni}}

Revision as of 13:58, 16 January 2020

Back to: Sonic Adventure.
Clock.svg This article is outdated.
Due to changing events, this article is either no longer correct or needs information added to it to make it complete. Please update it so that it meets current knowledge.

Clean pause

Notavailable.svg

In any mode, pause the game and hold X + Y to clear the game of the pause menu.

Unused content

Art

Art Description
An Item Box designed to stop time? Its use is unclear, however it may have assisted E-102 Gamma's time-limited levels.
These would have appeared over a Chao's head, but they do not appear in normal gameplay. Found in AL_ICON.PRS.
The red "Tornado" life gauge is used in both Sky Chase Act 1 and Sky Chase Act 2. The Tornado 2 has its own blue gauge on the disc, but the graphics are never used. Found in ST_128S_HPGEJI.PVR.

Models

Art Description
A spring model from Sonic Jam. Sonic Adventure was built on the engine seen in the Sonic World section of Sonic Jam, but this is the only Sonic Jam asset to be found on the Dreamcast disc. Its texture is also otherwise unused - other objects (Springs etc.) use a different, more detailed version instead.

Beta title screen

Beta title0.png

Found in TITLE.PRS, it appears a specifically-labelled "beta" version of Sonic Adventure existed at one point.

Tokyo Game Show '98 Autumn leftovers

A build of Sonic Adventure was available to play at Tokyo Game Show '98 Autumn. Japanese instructions on how to play the game remain in most versions of the game.

  • Sonic's instructions

  • Sonic's instructions part 2

  • Tails' instructions

  • Tails' instructions part 2

  • Knuckles' instructions

  • Knuckles' instructions part 2

  • Amy's Instructions

  • Amy's Instruction part 2

  • Big's Instructions

  • Big's instructions part 2

  • E-102's instructions

  • E-102's instructions part 2

Old character select screen

Also found on the disc are six images which make up an older character select screen. Incidentally, "Choose Your Buddy" is also the name of the song used on the character selection screen. These screens were likely shown at the aforementioned Tokyo Game Show, but potentially other builds as well.

Found in C_SELECT1.PRS and C_SELECT2.PRS.

  • Tgs chrsel s0.png
  • Tgs chrsel t0.png
  • Tgs chrsel k0.png
  • Tgs chrsel a0.png
  • Tgs chrsel b0.png
  • Tgs chrsel e0.png

Loading screen

Loading822a.png

This prototype loading graphic is used in AutoDemo, but not in the final game. Found in LOADING.PRS.

"Real Sonic"

Sa1protobluehedgehogad.png

Sonic Team took plenty of photos of the Sonic Adventure development process. Many of these are included on the original Japanese version's disc for the website, but in the western release only two remain - "DRAMA0" and "DRAMA1".

Voice clips

Through digging, several unused Tikal voice clips were found inside the game.

There are also several clips that can be found that discuss the Chao Gardens, some of which include information inconsistent with how the final game works ("Don't put more than six Chao in a garden" and its variations, for example).

Removed levels

Sonic Retro
A Japanese level list was discovered in the PC version of Sonic Adventure DX, and later in regular Sonic Adventure. This list contains names for three levels that do not exist in the final version: "Mushrooms" (きのこ), "Jungle" (ジャングル) and "Desert" (砂漠).

Sky Chase dragon

SAdragonmodel.pngSAdragon.pngDCdragon.png

One of the more curious absentees in Sonic Adventure is a giant two-headded dragon once set to appear in Sky Chase Act 2. It features in development screenshots and was briefly seen at the Tokyo International Forum unveiling, but is missing in the final game.

The object does exist (having originally been found in Sonic Adventure DX: Director's Cut (preview)[1]), but the polygons are not linked up properly in the final build. The first image shows what was found, the second image shows how he should look when properly assembled, textured, and colored, and the third image shows how he looks in game in the Dreamcast version, placed by hacking the game's SET files.

The dragon continues to exist in Sonic Adventure DX.

Eggman and Tikal

The Dr. Eggman and Tikal objects used in cutscenes are actually programmed the same way as the playable characters, and can be played as with hacking. They both have only the most basic movement functions, walking and jumping. They can't hurt or get hurt by enemies and obstacles, and cannot run on wind paths and some loops.

Pressing the action button activates the free movement mode which is normally only active when debug is on. Dying before hitting a checkpoint or changing segments in an Action Stage causes the game to crash, as they do not have starting position lists.

Alternatively, when using a moon jump cheat code during a Tikal flashback, Tikal will jump as well.

Hidden areas

Final Egg hidden room

SAFinalEggHiddenDoor.jpg

A small hidden corridor can be accessed behind the door pictured in the above image. To reach it, the player needs to start a Spin Dash on the edge of the bridge facing it. At the bottom of the corridor the camera stops, so the player has to rely on the first person camera to look at the surrounding environment. At the end is a dead end where the player cannot return. If a glitch is used to get Knuckles into Sonic's Final Egg, Knuckles can also access this area if done correctly.

This was planned to be used as a transition to the area Sonic's scene with the Egg Viper takes place in, being the original location of the goal. The goal was eventually moved back and the map was no longer needed, so the area was covered up. The camera for this transition is still intact and can be seen if the player walks up to the covered entrance.

Hidden Casinopolis corridor

SAHiddenCasinopolis.jpg

In the ceiling above this area and behind the striped object, Tails can fly to a unused corridor. When flying out, a strip of land will become visible. When Tails lands on it, he will go through the ceiling. This hidden part of the level seems to be fairly complete as there are monitors and rings.

Other secrets

E-105 is built of Dreamcasts

E105.png

Some textures used for E-105 are actually Dreamcasts.

Removed cowgirl billboard

Cowgirl.png
O COWGIRL.png

This potentially provocative cowgirl billboard from Casinopolis is only used in the Japanese version of the game, being removed for unknown reasons in Western releases, Sonic Adventure International and Sonic Adventure DX.

Mistakes & Leftovers

Note: Can we get some screenshots?

Object Layouts

Early Speed Highway Act 2 Layout

Far below Speed Highway Act 1 you can find a bunch of helicopters and a capsule, applying the object layout to Act 2 will reveal a early layout.

Sonic's Fakery Way

Even though Sonic doesn't go through Twinkle Park Act 3 he has a layout for it which is actually very old as the wrong objects show up.

Sonic's Hot Shelter

Sonic also has a layout for Hot Shelter even though he also doesn't goto the stage and it's also very old.

Big's Emerald Coast leftovers

As Big by using no clip mode you can get to the island used for his cutscene but even going even further reveals leftover objects from Sonic's level.

Interestingly this seems to match the layout of the AutoDemo.

These were removed in SADX.

Cheat device codes

These are cheat codes that can only be used with game enhancer devices.

Codebreaker

Unofficial codes

USA Game
Code Description
01752BDC 00000000 Debug Menu 1.0.
01756C5C 00000000 Debug Menu 1.1.
E3 Game
Code Description
01753CBC 00000000 Debug Menu.
PAL Game
Code Description
01752B1C 00000000 Debug Menu.
JAP Game
Code Description
0175B740 00000000 Debug Menu.
International Game
Code Description
0175455C 00000000 Debug Menu.

References

  1. ↑ http://forums.sonicretro.org/index.php?showtopic=10011&view=findpost&p=181042


Sonic Adventure / Sonic Adventure DX: Director's Cut
Sonic Adventure title.png

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