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Proto:Tetris (CD-i)

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This page details one or more prototype versions of Tetris (CD-i).

A prototype of the CD-i Tetris was dumped by Seventy777 in January 2021, sourced from a collection of CD-i titles owned by Blazers. Handwriting on the disc identifies this build as Version 1.02 and dates it to July 2, 1992, predating the final version (2.01) by only 22 days.

Despite this small timeframe, a good number of changes were made between the two versions.

Menu Differences

Intro/Main Menu

The prototype uses the American Interactive Media startup animation instead of the Philips Interactive Media animation that the final game uses.

Proto Final
Tetris CDi MainMenu Proto.png Tetris CDi MainMenu Final.png
  • The prototype's main menu plays a unique piece of music. The final game replaces it with the music track of the selected level.
  • A registered trademark (®) symbol was added to the Tetris text.
  • The Same button (which sets the garbage row height to the last one used) had its position and function changed between versions:
    • The prototype button is located in the Height section and has two arrows on it. Pressing it will not start a new game - the player has to press the Play button like usual.
    • The final button is placed between the Play and Quit buttons, has "Same" written on it, and starts a new game when pressed.
  • To fill in the space left by the old Same button, a button to start the game with two garbage rows was added.
  • The Show Next and Don't Show Next buttons are spaced further apart in the prototype.

Credits

Proto Final
  • The prototype credits track is completely different to the one in the final game. (This song also plays on the High Score screen in both versions, but it doesn't have a section here as there are no other differences besides the music.)
  • The credits themselves were lengthened to better match the length of the new music, as well as partially reorganized and retitled:
Proto Final
Programmer
Mike Berro

Additional Programming
Ken Jordan

Prototype Programming
Gary B. Smith

Graphic Design
Les Doughty

QA Testers
Janis Beckenbach
Greg A. L. Hemsath

Executive Producer
Sarina Simon

Senior Producer / Creative Director
David Riordan

Director of Technology
David Todd

Director of Photography
Mackenzie Waggamen
Programmer
Mike Berro

Prototype
Ken Jordan
Gary B. Smith

Lead Artist
Les Doughty

Music
Jim Andron

Director of Photography
Mackenzie Waggamen

Grips
Joseph Keppler
John Scarpaci

Executive Producer
Sarina Simon

Senior Producer / Creative Director
David Riordan

Associate Producers
Carrie Daccardi
David White

Director of Technology
David Todd

QA Testers
Janis Beckenbach
Greg A. L. Hemsath

Image Capture
David Todd

Administrative Coordinator
Charlene Bonhoff

Software Tools
Mike Berro
Joe Burks
Ken Jordan
Brandie Lynn
Dan Pinal
Gary B. Smith
David Todd

Of note is that three copies of the earlier credits can be found in the prototype at 0xA373DD, 0xD8078D, and 0x10C9BA7, though they're partially overwritten.

Level Differences

General

Proto Final
Tetris CDi LevelLine Proto.png Tetris CDi LevelLine Final.png
  • An erroneous brown line can be seen on the right side of the prototype's level introduction screens.
  • The final music tracks for Levels 3 to 7 do not exist in the prototype.
  • Every track shared between the two versions had their volume slightly lowered for the final game.

Levels 0-2

Proto Final
Tetris CDi Level0BG Proto.png Tetris CDi Level0BG Final.png

The clouds in Level 0's background had their highlights painted out.

Proto Final

Level 0's music plays 3.5% slower than the final version, but is otherwise the same.

Proto Final

The same thing can be said for Level 1's music, though this time it's played 4.2% slower. (The backgrounds for Levels 1 and 4 are identical to their final versions.)

Proto Final
Tetris CDi Level2BG Proto.png Tetris CDi Level2BG Final.png

Level 2's clouds had their highlights removed as well.

Proto Final

Level 2 suffers from yet another case of having a near-final music track that plays 2.3% slower. Fortunately, this is the last level track to do this.

Levels 3-5

Proto Final
Tetris CDi Level0BG Proto.png Tetris CDi Level3BG Final.png

The prototype's Level 3 is a clone of Level 0, having the exact same background and music. The final version gives it a new music track and changes the background to a desert, which used to be the prototype's background for Level 9.

Proto Final

Level 4's music would be replaced and reused for the final's Level 9. The prototype version of the track lasts 38 seconds longer than the final one.

Proto Final
Tetris CDi Level5BG Proto.png Tetris CDi Level5BG Final.png

The prototype's Level 5 uses the beach background that appears in the final version's Level 6. It was replaced with a forest background that appears in the prototype's Level 7.

Proto Final

Much like Level 4, the music for Level 5 would be replaced and also reused for the final version's Level 8. The prototype track is much shorter (1:34 vs 4:23) and also plays around 2% slower.

Levels 6-9

Proto Final
Tetris CDi Level0BG Proto.png Tetris CDi Level5BG Proto.png

Level 6 is another clone of Level 0. It was given a new music track and the beach background from the prototype's Level 5.

Proto Final
Tetris CDi Level5BG Final.png Tetris CDi Level7BG Final.png

Level 7's background was changed from the final's Level 5 forest to a new badlands one. The music is yet another repeat of Level 0's, which was thankfully remedied in the final version.

Proto Final
Tetris CDi Level0BG Proto.png Tetris CDi Level8BG Final.png

The prototype's Level 8 is yet another Level 0 clone. The final version gives it a brand-new riverside background and reuses the early music for Level 5.

Proto Final
Tetris CDi Level3BG Final.png Tetris CDi Level9BG Final.png

Level 9's desert background was given to Level 3 and replaced with a new one depicting a beach at sunset.

The music in Level 9 is a completely different track that fits well with the aesthetic of the level. The final game removes it and replaces it with Level 4's early music.

Abstract/Bibliography Changes

The text in the abstract file was changed from a generic description of Tetris to the description used on the game's back cover:

Proto Final
Tetris will lure even the most seasoned hand 
into a challenging game of speed and 
maneuvering.

As the four-square pieces tumble from the 
top of the screen into an empty pit, it's up 
to you to rotate them into a position which 
leaves no gaps in the layers at the bottom.

Once aligned, you can drop them into place 
and increase your score.
Tetris
...a classic game in a class of its own.

Originally conceived by Alexy Pajitnov and Vadim 
Gerasimov of the former USSR, Tetris is 
recognised all over the world for its elegant 
simplicity and challenging game play.

Tetris CD-I is the ultimate Tetris experience.

Spectacular video nature scenes and an original 
CD score by Jim Andron complement classic Tetris 
game play and elevate this phenomenon to new heights.

In CD-I, the classic becomes a legend.

Produced by Philips POV Entertainment Group

The only thing in the prototype's bibliography file is the name Lords of the Rising Sun, another CD-i game by Philips POV. This was replaced in the final version with a list of the game's staff.

The copyright file is identical to the final version.