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Frogger (1997)

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Title Screen

Frogger

Also known as: Frogger: He's Back!
Developer: SCE Cambridge Studio
Publisher: Hasbro Interactive
Platforms: PlayStation, Windows
Released in JP: May 28, 1998
Released in US: September 30, 1997
Released in EU: November 1997


AreasIcon.png This game has unused areas.
CodeIcon.png This game has unused code.
DevTextIcon.png This game has hidden development-related text.
EnemyIcon.png This game has unused enemies.
GraphicsIcon.png This game has unused graphics.
ModelsIcon.png This game has unused models.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
TextIcon.png This game has unused text.
DebugIcon.png This game has debugging material.
RegionIcon.png This game has regional differences.


ProtoIcon.png This game has a prototype article
PrereleaseIcon.png This game has a prerelease article

Frogger. He's back. Woohoo. Also pretty much the last classic-style Frogger game until Frogger Returns and Frogger: Hyper Arcade Edition (and either the best or worst depending on who you ask). It is also absolutely brutal in difficulty, especially when compared to its immediate sequel.

Hmmm...
To do:
Get a revisional differences page up detailing differences between PSX and PC releases. Document the Windows 95 Prototype, original menu mockups with 3d models, Snail Racing, and early elements visible in-game screenshots. Document regional differences in the Japanese PSX release. Document unused code / debug features.

Subpages

Blank.png
Unconfirmed
The content under this sub-page is not publicly verifiable.

Unused Music

This track has no identified name, but the game's source code suggests it was for the cut Ruins Zone.

This track originally was meant to play when the jungle zone was completed. Because the credits play when you complete the jungle zone, this track goes unused.

Unused Palette Files

The PC version contains a .PAL (Color Palette) file for each level, along with a palette named "OPTIONS.PAL". These files are believed to be unused because if they are corrupted, there are no visible changes.

Unused Graphics

Unused Sounds

Filename Sound Filename Sound Filename Sound
CAV_BAT
CAV_FROG_SLIDE
CAV_LAVADROP_BUBBLE
CAV_LAVADROP_FLOORHIT
CAV_ROCKFALLFLOOR
CAV_ROPEBRIDGE01
CAV_ROPEBRIDGE02
CAV_SLIME
CAV_SNAIL_MOVE
CAV_SNAIL_SLIME
DES_EARTHQUAKE
DES_HOLE02
DES_ROCK_ROLL
DES_SANDSTORM
FOR_SWAN_CALL
FOR_SWAN_CALL_FRENZIED
GEN_FROG_FALL1
IND_METAL_SMASH
IND_STREAM_JET3
JUN_BIRD_CALL
JUN_BIRD_CALL_FRENIZED
JUN_BIRD_WING
JUN_BIRD_WING_FRENIZED
JUN_BITE_SWALLOW
JUN_FROG_CROC_MUNCH
ORG_LORRY_HORN01
SKY_BIPLANE_BANNER1
SKY_BIRD_SMALL1
SKY_CROW_CALL_FRENZIED
SKY_FLOCKING1
SKY_GOOSE_CALL
SKY_GOOSE_CALL_FRENZIED
SKY_HAWK_DIVE
SKY_JET1
SUB_DOG_GROWL
SUB_LORRY_HORN01
SUB_LORRY_HORN02
SWP_BIRD_WING_FRENZIED
SWP_CRUMPLE
SWP_NOISY_WATER
SWP_SLIPPING
SWP_STAT_MARSH
SWP_STAT_PIPE_HOLE
SEL_CANCEL
SEL_HI_SCORE_COUNT
SEL_HI_SCORE_COUNT0
SEL_SCORE_FINISH

Unused Models

Unused Animations


Developer Levels

ISLAND.MAP

This file was found in the PSX build. It was created by developer Tim Closs, it was used to test many different things.

One of the main things it was used to test was movement and slopes.

It contains a mud-pit which causes the player to bounce. This behavior is not seen in the retail game.

The map is very unpolished, with lots of holes in the collision grid and outdated textures.

QB.MAP

This odd unused map is likely designed and named after QBert.

The map has no textures, only vertex coloring.

Words cannot describe how strange this map is.

Hidden Developer Comment

In each map file, the comment is:

Maybe this time it'll all work fine...

Out of Bounds Models

Retro Level 5

Frogger-org5-crockhead.png

This model matches the crocodile head model used as an enemy in this zone. However, this is part of the level geometry.

Bang Bang Barrel

Frogger-swp1-flag.png<

This flag looks identical to the flags used in the multiplayer stages as checkpoints. However, it is part of the level geometry, and not animated.

Boom Boom Barrel

Frogger-swp4-box.png

This box's purpose is unknown. It may have been used for to mark a location during development. It covers the teleport location for the barrels moving side to side, however it does not appear to be for functional purposes. It is also textured on all 6 sides.

Unpublished Cheats

Originally, several cheats were published on the Frogger website. Additionally, there is an extra cheat which was not published.

PC: NO MORE TIMEOUT DEATHS PLEASE

When the timer reaches 0, it will remain at zero, but the player will continue playing as normal instead of dying.

It is unknown why this cheat-code was not published.

Build Date

FROGPSX.MWD contains all game files, along with its build date.

Version Date
PlayStation (US) Creation Date: Tuesday, 23rd September 1997

Creation Time: 13:03:52

PlayStation (EU) Creation Date: Sunday, 28th September 1997

Creation Time: 13:05:47

PlayStation (JP) Creation Date: Tuesday, 7th April 1998

Creation Time: 09:22:34

PlayStation Demo (Official U.S. PlayStation Magazine Demo Disc 04) Creation Date: Wednesday, 3rd September 1997

Creation Time: 14:04:22

PlayStation Demo (Euro Demo 28) Creation Date: Monday, 15th September 1997

Creation Time: 13:22:10

PC (Build v1.0) Creation Date: Saturday, 15th November 1997

Creation Time: 20:19:27

PC (Build v3.0) Creation Date: Wednesday, 19th November 1997

Creation Time: 18:07:31

PC Demo (Australian PC User March 1998) Creation Date: Wednesday, 17th December 1997

Creation Time: 15:18:30

Windows 95 Prototype (#1) Creation Date: Wednesday, 3rd September 1997

Creation Time: 16:32:42

Debug Text (PlayStation (US))

The file SLUS_005.06 on the PlayStation (US) version of the game contains debug text..

...
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[
  "----------------\n"
  "%jcFROGGER"
  "%jcCOMPILED: 13:01"
  "%jcBUILD: 71"
  "%jc23/09/97"
  "----------------\n"
]; This build information changed during development, and this was shown upon booting the game on debug builds. Unsure what %jc stood for. One guess is that it centered the text and added a newline character.

[
 "----------------\n"
 "Heap: %ld Kb\n"
 " Bss: %ld Kb\n"
 "Data: %ld Kb\n"
 "Code: %ld Kb\n"
 "Version: 59\n"
 "----------------\n"
]; While technically, used, the user will never see this. After initialization, the PSX version calls printf with this text. 

Stream_next_frame: Size change - ABORT   ; An error message for trying to play an invalid STR file.
Stream_sync: Timeout in decoding         ; An error message for failing to play a STR.
Stream_open_file: Find Failure: %s       ; An error message for failing to find the STR file specified.
Stream_open_file: Seek Failure:%s        ; An error message saying the CD blocking control method failed.

%jcRECORDING DEMO       ; This flashes on the screen while the user is recording a demo. Potentially in the future we'll be able to get a video of this.
GAME_MULTI_COMPLETE     ; If memory allocation for multiplayer completion data fails, this message will be displayed on-screen in debug mode.
Game outro data         ; Allocation failure message for "JUN_OUTRO_DATA" struct.
game over multiplayer   ; Allocation failure message for "GAME_OVER_MULTIPLAYER" struct. (Contains data showing results / who won.)


ENTITY ROOT
Water wibble vertices buffer
Water wibble vertices
Water wibble distances
Map poly groups
Map poly nodes
SKY LAND VERTICES
SKY LAND QUADS
POLY_GROUP_PRIMS
LIVE ENTITY
ENTITY SPECIALS
FROG POLY PIECE POP
CHKPOINT PTR
FROG POLY PIECE POP
PATH RUNNER
HUD score background polys
HUD TIMER BAR POLYS
HUD CHECKPOINT 2DSPRITE 
SHADOW EFFECT
SIGHTS EFFECT
TRAIL EFFECT
TONGUE EFFECT
TRA_TRIS
POLY PIECES
LEVELMOFS
Select BG polys
FROG ANIM HEADER CONSTRUCTION
HS water points ; HS stands for high-score.
HS riverbed points
HS water prims
HS riverbed prims
HS matrices 4
HS matrices 3
FROG POLY PIECE POP
LS matrices ; LS stands for level select.
; The above chunk are all further examples of allocation failure messages. 

MRAllocMem(%ld, '%s') failed ; This takes the above messages, and displays them.

Retry file: %s       ; XA Audio File lookup failed.
File: %s (%d bytes)  ; XA Audio File was found, and has a particular length.
Start = %d, End = %d ; Reading audio from the given offsets.

%jcTOO MANY POLYGONS ; This message would display if there were too many polygons to render.
%jcCHECKPOINTS COLLECTED ; Removed developer cheat to complete the level.
%jcGOLDFROG COLLECTED    ; Removed developer cheat to capture the golden frog of the level.

[
  "%jc3.DMA  1:11 32345678"
  "%jc2.DMA  1:11 22345678" 
  "%jc1.DMA 0000000000:00s"
]; Dummy level high-score data. Overriden / shown when a level is chosen from the stack.

Internal API Version 1.40 (c)1997 SCEE    ; Information about Millenium Interactive's Engine. The PC version is running 1.43.

MR_MFIXDMRInitialiseResources: No filename information available in .MWI; Used if there was a need for file names, but this was the PSX build, which doesn't include file names in the MWI. (File names were included in the PC version because it made it possible for map designers to load maps directly from disk instead of having to build a new game archive to test every change.)

Failure to load PC file: %s ; If opening a file on disc fails (A debug-only feature), this message will be used.
Failure to save PC file: %s ; Part of the debug-only file-saving method. This is the message used if the file-system fails to create a file for whatever reason.

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