Prototype releases  Sega  Dreamcast

I have been active in the preservation of video game heritage since 2016. I have released (put online) around 200 prototypes that you will find for free download below. Some prototypes have a dedicated article and analysis, others have  just direct download links.

Unreleased Dreamcast Games (Castlevania, Half Life ...).jpg
Sega Dreamcast Préservation prototype collection.jpg
Lot de prototype Dreamcast
20201004_192748.jpg

Les Unreleasead :

Agartha prototype dreamcast E3 build.jpg
Castlevania Résurection logo.jpg
20200610_175442.jpg
shot_002.PNG
md1.jpg
Gheist Force Main Title.jpg
Unreleased Half-Life Dreamcast Main Title.jpg
HEROSJ~1.JPG
ATTRACT__1.bmp
Propeller Arena Dreamcast prototype title menu.jpg
Ring l'Anneau des Nibelungen Dreamcast prototype Wagner.jpg
Scud Race Dreamcast Dolphin Tunnel.jpg
Shenmue 2 Debug Menu main title Dreamcast.jpg
Flinstone Viva Las Vegas dreamcast in game.jpg
4 x 45 menu.jpg
The Red Star Unreleased Xbox Title.jpg

Les Prototype d'évènement particulier (E3, Toy Fair etc.) :

20201115_204600.jpg
Jet Set Radio Dreamcast prototype debug menu.jpg
E3 prototype Metropolis Sreet Racer in game.jpg
Outtrigger beta dreamcast carachter menu.jpg
Dreamcast World Serie Baseball 2K1 main menu.jpg
Quake 3 Arena dreamcast E3 build.jpg
Yu Suzuki in Shenmue 2.jpg

Prototypes with debug menu:

battle debug menu 2.png
Time Stalkers information screen prototype dreamcast.png
Sega Marine Fishing Debug menu prototype.jpg
Sonic-Shuffle-GDR2.png
no-image-available-icon-photo-camera-flat-vector-illustration-132483141.jpg
Headhunter prototype playstation 2 Debug menu.jpg
Acclaim Shadowman Dreamcast prototype debug menu.jpg
Stunt GP DC prototype Shock Left Rear Debug.jpg
MDK 2 Dreamcast Debug Menu.jpg
Sonic-Shuffle-GDR2.png

Prototypes with special options (Cheat, Free Camera etc.):

Crazy Taxi Dreamcast beta camera GTA mode.jpg
index.jpg
prototype Sega Extreme Sport Dreamcast track select.jpg
no-image-available-icon-photo-camera-flat-vector-illustration-132483141.jpg
South Park Rally GD-R Objective Cam.jpg
Ecco the Dolphin Dreamcast prototype Select Level.jpg
Fur Fighters prototype Select Stage.jpg
Metropolis Street Racer disc prototype (Oct 10, 2000).jpg

Really special prototypes (big differences, early builds, weird etc.):

Guilty Gear X dreamcast prototype main title.jpg
prototype Dead or Alive 2 Dreamcast option menu.jpg
Sonic Adventure patch note prototype.jpg
Virtua on dreamcast option menu.jpg
Spirit of Speed Dreamcast prototype Control.jpg
Re-Volt Dreamcast Frontend Track (prototype).jpg
psopink1.jpg

Prototypes built as demos or simply promotional GD-roms:

Capcom Vs Snk Dreamcast prototype promo.jpg
F355 Challenge Passione Rossa Dreamcast prototype.jpg
Sonic Adventure 2 Dreamcast prototype.jpg
F1 World Grand Prix Redbull Demo face.jpg
Grandia 2 Dreamcast (June 1, 2000 Démo) disc.jpg
MSR Opel Challenge White Label  (Jul 25, 2000).jpg
Whats Shenmue prototype disc_edited.jpg
Tower of Babel Technical Demo for Dreamcast.jpg
Dreamcast Promotion Disk (Oct 22, 1998 GD-Rom Dreamcast) Cover.jpg

Acclaim prototypes without categories:

Dreamcast prototype Ducati World Main Title.jpg
Vanish Point Dreamcast prototype Title Menu.jpg
Dreamcast prototype Dave Mirra BBMX Main Menu.jpg
Dreamcast beta NFL QB Club 2000 title menu.jpg

The prototypes of the games published by Acclaim come from the " Duffy's Dreamcast Collection " project, a particular release comprising around 50 prototypes.

Prototypes without in-depth analyses, direct download link:

Bangai-O (Apr 14, 2000 prototype)

Some differences are notable, they are particularly in the translation. It's up to you to compare these photos with the commercial version:

You can download it below:

Bangai-O (Apr 14, 2000 prototype)

bangaio dreamcast prototype
b2.jpg
b3.jpg
 
Disney's Dinausor dreamcast (Oct 3, 2000 prototype)
  • Debug options are present. You have to do a button combo with the port 1 joystick. You can:

  • have the Free Camera

  • have Camera Flight Mode

  • Go through and choose the levels where the cutscenes.

​​

You can download it below:

Disney's Dinosaur (Oct 3, 2000 prototype)

Disney Dinausor Dreamcast prototype Debug
Disney Dinausor Dreamcast prototype
 
 
F1 Racing Championship (May 30, 2000 prototype)

This build contains a different intro than the one we know. Which is the main interest of this prototype version. There are also some changes in the menus.

You can download it below:

F1 Racing Championship (May 30, 2000 prototype)

F1 Racing Championship Dreamcast prototype
Hydro Thunder (Jul 16, 1999 prototype)

This prototype has all levels and all boats unlocked.

In  searching the files, we can find some of the source codes of the games. This was already the case on the 2 other builds that I shared.

​​

You can download it below:

Hydro Thunder (Jul 16, 1999 prototype)

20201018_205445.jpg
 
Monaco Grand Prix (Jan 6, 1999 prototype)

Some differences are noticeable as you will see in the photo  which makes the comparison between the prototype and the final version.

You can download it below:

Monaco Grand Prix (Jan 6, 1999 prototype)

Monaco Grand Prix Dreamcast prototype différences
Monaco Grand Prix Dreamcast prototype
 
Rayman 2: The Great Escape (Feb 3, 2000 prototype)

Some differences  as you will see in the picture  which makes the comparison between the prototype and the final version.

You can download it below:

Rayman 2: The Great Escape (Feb 3, 2000 prototype)

Rayman 2 Dreamcast prototype différences
 
Tee Off (Aug 25, 1999 prototype)

The peculiarity of this prototype concerns the demo which is pending on the "Start" screen. Instead of having a sequence of the games, we have a promotional cutscene.

You can download it below:

Tee Off (Aug 25, 1999 prototype)

 
Test Drive: V-Rally (Jan 25, 2000 prototype)

A push menu debug is present by inserting a keyboard in port 2 of the console. It gives access to lots of options. It would take a long time to quote them all to you, the easiest way is to give it a try.

You can download it below:

Test Drive: V-Rally (Jan 25, 2000 prototype)

V Rally 2 Dreamcast prototype
 
San Francisco Rush 2049 (Feb 17, 2000 prototype)

This is an alpha version. We can easily see that the game was at a very early stage. The menus are basic, not worked. Levels are incomplete like obstacle course.

 

You can download it below:

San Francisco Rush 2049 (Feb 17, 2000 prototype)

Rush San Francisco 2049 Dreamcast prototype
 
Speed Devil (Jul 19, 1999 prototype)

This build contains a different intro than the one we know. Which is the main interest of this prototype version.

Some differences are present.

You can download it below:

Speed Devils (Jul 19, 1999 prototype)

Speed Devil Dreamcast prototype
 
Wacky Race (Feb 8, 2000 prototype)

The first level of the game is complete, finished. While playing the other maps, we find ourselves confronted with invisible walls, an artificial intelligence in the collection, houses which float ...

You can download it below:

Wacky Races (Feb 8, 2000 prototype)

Wacky Race Dreamcast prototype
 
Le Mans 24 Hours (Aug 20, 2000 prototype)

Debug options are present, you can activate them in this way:

  • Start + X =  You can change the car, for example that of the opponent.

  • Start + A = You can fly with your car, Free Camera Cars

  • Start + B = You can activate the simple Free Camera

The cheat mode is present automatically in the options of the game, for example to have all the vehicles.

This is a Release Candidate.

You can download it below:

Le Mans 24 Hours (Aug 20, 2000 prototype)

24hmdc0f.jpg
 
Sega WordWilde Soccer (Oct 3, 1999 prototype)
Draconus (Jan 27, 2000 prototype)

Some dev options are present, except errors, they were not removed for the commercial version.

  • In games, start: L + R then left to trigger God mod and Frame time and flip

  • In games, start: L + R then down to go to the next level

  • In games, start: L + R then up to trigger teleportation

The last levels are not finished, the end cinematic does not exist or almost does not exist hi hi hi

Some differences are noticeable as you will see in the photo  which makes the comparison between the prototype and the final version.

You can download it below:

Draconus: Cult of the Wyrm (Jan 27, 2000 prototype)

draconus.png
 

The differences are notable for this version of Sega Worldwide Soccer.

The titles screen is not the same as the final version. We will notice a slight similarity with that of the Saturn version.

The entry cinematics of the matches are presented in completely different ways

Some options are missing, the colors of the buttons in the menus are not the correct one, the music of the menus as well as the sound effects for validating the options are different.

You can download it below:

Sega Worldwide Soccer 2000 (Oct 3, 1999 prototype)

 
Slave Zero, 2 build (Nov 22, 1999 prototype)

Debug options are present, you can activate them by connecting a controller to port 2 of the console and perform button combos . You will know that it is possible to be invisible, to have all the weapons ...

It's up to you to find the mysteries of this prototype !!!

It must be poorly optimized or unfinished. The more games crash the more we advance through the levels.

I have two different builds of Slave Zero having these dev options.

You can download them below:

Slave Zero (Aug 20, 1999 prototype)

Slave Zero (Nov 22, 1999 prototype)

 
Gunbird 2 ((Feb 23, 2000 prototype)

The differences are few. This prototype is getting closer to a final version.

  • Gallery image (PVR) is incomplete.

  • Some boxes explaining the gallery's drawings are empty (character Alucard).

  • The end audio (ADX) contains noise.

  • The ADX end is not used in the US version, so it is meaningless.

You can download it below:

Gunbird 2 (Feb 23, 2000 prototype)

Gunbird 2 Dreamcast prototype_.jpg
Gunbird 2 prototype Dreamcast.jpg
SPAWN IN THE DEMONS HAND (June. 15, 2000 Dreamcast prototype)

The differences are few. This prototype is close to a final version.

  • On the title screen, the "Homepage" option is present unlike the commercial version. This option is only present on the Japanese version .

  • The Dream Passport localized data is still there.

  • The screen saver of the internet page is strange (see photo).

Dreamcast prototype Spawn
Spawn Dreamcast prototype.jpg
Spawn Dreamcast prototyp homepage.jpg
Dreamcast prototype Spawn Homepage .jpg
 

connections  direct  prototype download  :

18 Wheeler: American Pro Trucker (Feb 2, 2001 prototype) February 2, 2001 04:11:28 Dreamcast

4x4 Evolution (Jan 9, 2001 prototype) January 9, 2001 11:47:12 AM Dreamcast

90 Minutes: Sega Championship Football (Sep 18, 2001 prototype) September 18, 2001Dreamcast

Alien Front Online (final prototype) June 25, 2001Dreamcast

Blue Stinger (prototype) Dreamcast

Chu Chu Rocket (prototype) Dreamcast

Cool Boarders Burrrn (Jun 22, 1999 prototype) Jun 22, 1999 7:57:34 PM Dreamcast

Crazy Taxi 2 (May 14, 2001 prototype) May 14, 2001 6:31:21 PM Dreamcast

Dave Mirra Freestyle BMX (Oct 16, 2000 prototype) October 16, 2000 2:02:14 AM Dreamcast

Daytona USA 2001 (Feb 27, 2001 prototype) February 27, 2001 7:08:50 PM Dreamcast

Dead or Alive 2 (Jun 11, 2000 prototype) Jun 11, 2000 10:36:47 PM Dreamcast

Deep Fighter (May 5, 2000 prototype) May 5, 2000 4:31:46 PM Dreamcast

 

European Super League (Dec 18, 2000 prototype) December 18, 2000 5:48:46 PM Dreamcast

F1 World Grand Prix (Sep 3, 1999 prototype) 3 September 199917:13:26Dreamcast

F1 World Grand Prix II (prototype) Dreamcast

F355 Challenge (Aug 21, 2000 prototype) Aug 21, 2000 1:50:48 PM Dreamcast

F355 Challenge (May 1, 2000 prototype) May 1, 2000 6:53:26 PM Dreamcast

Fighting Force 2 (Dec 2, 1999 prototype) December 2, 1999 02:02:18 Dreamcast

Freestyle Scooter (prototype) Dreamcast

Fur Fighters (Jun 12, 2000 prototype) Jun 12, 2000 2:02:51 PM Dreamcast

Fur Fighters (Jun 2, 2000 prototype) Jun 2, 2000 1:31:57 PM Dreamcast

Gauntlet Legends (May 26, 2000 prototype) May 26, 2000 12:24:24 PM Dreamcast

Grandia II (Jun 1, 2000 demo) June 1, 2000 23:11:02 Dreamcast

Hidden & Dangerous (Jul 30, 2000 prototype) July 30, 2000 20:37:32 Dreamcast

Hydro Thunder (Jun 16, 1999 prototype) June 16, 1999 5:49:18 PM Dreamcast

Hydro Thunder (Sep 8, 1999 prototype) September 8, 1999 5:15:42 PM Dreamcast

Jet Set Radio (Oct 3, 2000 prototype) Oct 3, 2000 12:15:43 PM Dreamcast

JoJo's Bizarre Adventure (Jan 11, 2000 prototype) January 11, 2000 4:28:16 PM Dreamcast

KISS Psycho Circus: The Nightmare Child (Nov 28, 2000 prototype) November 28, 2000 2:38:30 PM Dreamcast

KISS Psycho Circus: The Nightmare Child (Nov 3, 2000 prototype) 3 November 2000 11:36:32 Dreamcast

Legacy of Kain: Soul Reaver (Jan 18, 2000 prototype) January 18, 2000 11:06:04 AM Dreamcast

MSR: Metropolis Street Racer (prototype)

MagForce Racing (May 24, 2000 prototype) May 24, 2000 8:21:08 PM Dreamcast

Mat Hoffman's Pro BMX (Jun 29, 2001 prototype) Jun 29, 2001 2:46:48 PM Dreamcast

Mortal Kombat Gold (Aug 28, 1999 prototype) August 28, 1999 1:45:34 PM Dreamcast

 

Mr. Driller (prototype) Dreamcast

NBA 2K (Dec 21, 1999 prototype) 21 December 1999 12:11:48 Dreamcas

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NBA 2K (Sep 22, 1999 prototype) September 22, 1999 23:53:24 Dreamcast

NBA Hoopz (Jan 9, 2001 prototype) Jan 9, 2001 3:19:10 PM Dreamcast

NFL Blitz 2000 (Sep 8, 1999 prototype) September 8, 1999 12:02:56 Dreamcast

NHL 2K (Mar 21, 2000 prototype) March 21, 2000 4:39 PM:

Outrun 2 (Aug 18, 2004 prototype) Aug 18, 2004 2:13:28 PM Xbox

 

Phantasy Star Online (Jan 14, 2001 prototype) January 14, 2001 8:00:00 PM Dreamcast

Plasma Sword: Nightmare of Bilstein (Jun 12, 2000 prototype) June 12, 2000 12:21:00 PM Dreamcast

Plasma Sword: Nightmare of Bilstein (prototype) Dreamcast

Project Justice (Nov 29, 2000 prototype) Nov 29, 2000 12:00:00 PM Dreamcast

Ready 2 Rumble Boxing (Aug 20, 1999 prototype) August 20, 1999 12:06:18 Dreamcast

Ready 2 Rumble Boxing (Jul 7, 1999 prototype) July 7, 1999 4:38:54 PM Dreamcast

Record of Lodoss War: Advent of Cardice (Oct 4, 2000 prototype) October 4, 2000 5:00:50 PM Dreamcast

Red Dog - Superior Firepower (Sep 29, 2000 prototype) September 29, 2000 8:28:00 AM Dreamcast

Red Dog - Superior Firepower (prototype) Dreamcast

Rez (Jul 30, 2001 prototype) July 30, 2001 1:21:06 PM Dreamcast

Samba De Amigo (Sep 19, 2000 prototype) September 19, 2000 4:53:38 PM Dreamcast

Sega Extreme Sports (Jul 3, 2000 prototype) July 3, 2000 5:25:30 PM Dreamcast

Sega Extreme Sports (Jun 5, 2000 prototype) June 5, 2000 04:53:28 Dreamcast

Sega Rally 2 (Aug 5, 1999 prototype) August 5, 1999 4:26:20 PM Dreamcast

Sega Worldwide Soccer 2000: Euro Edition (Apr 14, 2000 prototype) April 14, 2000 4:02:33 PM Dreamcast

Silver (Apr 17, 2000 prototype) April 17, 2000 1:06:46 PM Dreamcast

Silver (May 17, 2000 prototype) May 17, 2000 1:17:14 PM Dreamcast

Silver (May 26, 2000 prototype) May 26, 2000 3:53:32 PM Dreamcast

Sonic Adventure 2 (Nov 15, 2000 prototype) November 15, 2000 21:29:50 Dreamcast

Space Channel 5 (Apr 20, 2000 prototype) April 20, 2000Dreamcast

 

Street Fighter III 3rd Strike: Fight for the Future (Jan 7, 2000 prototype) June 7, 2000 6:30:18 AM Dreamcast

Street Fighter III: Double Impact (Jan 13, 2000 prototype) January 13, 2000 9:45:06 AM Dreamcast

Super Runabout: San Francisco Edition (Oct 19, 2000 prototype) October 19, 2000 5:02:46 PM Dreamcast

Suzuki Alstare Extreme Racing (Jul 29, 1999 prototype) July 29, 1999 20:39:00Dreamcast

Tokyo Highway Challenge 2 (Sep 5, 2000 prototype) September 5, 2000 10:29:43 AM Dreamcast

Tony Hawks Pro Skater (Jan 30, 2000 prototype) January 30, 2000 6:00:56 PM Dreamcast

Toy Commander (Jul 21, 1999 prototype) July 21, 1999 2:56:01 PM Dreamcast

UEFA Striker (Jul 21, 1999 prototype) 21 July 1999 16:29:00Dreamcast

Ultimate Fighting Championship (Aug 26, 2000 prototype) Aug 26, 2000 4:26:54 PM Dreamcast

Urban Chaos (Aug 28, 2000 prototype) Aug 28, 2000 3:26:52 PM Dreamcast

V-Rally 2: Expert Edition (Mar 6, 2000 prototype) March 6, 2000 1:18:44 PM Dreamcast

V-Rally 2: Expert Edition (Apr 18, 2000 prototype) April 18, 2000Dreamcast

Virtua Athlete 2000 (Jul 27, 2000 prototype) July 27, 2000 02:05:06 AM Dreamcast

Virtua Striker 2 Ver. 2000.1 (Nov 19, 1999 prototype) November 19, 1999 11:30:10 AM Dreamcast

Virtua Tennis (Jun 2, 2000 prototype) Jun 2, 2000 3:48:23 PM Dreamcast

Virtua Tennis 2 (Sep 16, 2001 prototype) September 16, 2001 7:06:42 PM Dreamcast

Wacky Races (Mar 16, 2000 prototype) Mar 16, 2000 6:07:16 PM Dreamcast

Wacky Races (prototype) Dreamcast

Walt Disney World Quest: Magical Racing Tour (Jun 7, 2000 prototype) June 7, 2000 12:56:06 PM Dreamcast

Wetrix Plus (Oct 4, 1999 prototype) October 4, 1999 7:38:48 PM Dreamcast

Bad Dump, Disc Rot, Bad burn?

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