Gran Turismo 2

Gran Turismo 2
Developer: Polyphony Digital Publisher: Sony Computer Entertainment Platform: PlayStation Released in JP: December 11, 1999 Released in US: December 23, 1999 Released in EU: January 28, 2000 This game has unused areas. This game has unused playable characters. This game has unused code. This game has hidden developer credits. This game has unused graphics. This game has unused music. This game has unused text. This game has regional differences. This game has revisional differences. This game has a prototype article This game has a prerelease article This game has a bugs page

Gran Turismo 2 is essentially just the first game with minor tweaks made and the amount of content cranked up about eight notches.

The game was notoriously rushed to meet the Christmas deadline, leading to a significant amount of content being cut. It’s also notable for its bugs, to the point where 100% completion was rendered outright impossible in early versions. Not that this stopped the game from being a monster hit anyway - the only games on the console that outsold it were the original and Final Fantasy VII.

As an aside, it’s also the first game to be supported by the "bleemcast!" emulator project.

Sub-Pages

Prototype Info

Prerelease Info

Bugs

Resources

Arcade Mode Disc Unused stuff intended for or found on the Arcade Mode disc.

Gran Turismo Mode Disc Unused stuff on the GT Mode disc.

Unused Cars Cars that are in the game but only attainable by cheating.

Unused Course Assets Unused assets pertaining to courses: the tracks themselves, skyboxes and minimaps.

Version Differences

Regional Differences Licensing and marketing choices resulted in lots of changes between regions.

Revisional Differences Polyphony rushed to fix issues caused by rushing.

Leftover 'GT HiFi' Code

The original Gran Turismo features an unlockable game mode known as GT HiFi, which allows the player to run time trials on stripped-down variants of night courses at 60/50 frames per second. While this mode was excluded from GT2, code responsible for increasing the framerate as well as disabling tire smoke effects and the rear-view mirror is left unused, being accessed by setting a specific byte in the loaded race parameters to 01.

Build	Address
November 28	0x1D5CB4
November 29	0x1D5CC4
December 8	0x1D52C4
December 11	0x1D5634
December 22	0x1D56C4
December 28 (NA)	0x1D5864
December 28 (EU)	0x1D5894

Unused Graphics

The following graphics are unused on both Arcade and Gran Turismo Mode discs.

Demo Title Screens

Japan/Europe (arc_topmenu)	North America (arc_topmenu_usa)

Found unused in gzip archives in the arcade directory of GT2.VOL are graphics for two title screens originally used in demo builds of the game.

Early Communication/Data Transfer Panels

Unused	Used

Also in the arcade directory, early graphics for the Communication/Data Transfer menu options can be found in topmenu_panels.tim. The unused sheet features different art and dimensions compared to the final used version.

Unused Text

Platinum Prize

PLATINUM PRIZE!
MEDAILLE DE PLATINE !
PLATIN!
PLATINO!
¡PLATINO!

A text string present in data-race.txd shows that a fourth prize was planned to be earned in the license tests. It is even translated to other languages.

Check Grid

Check Grid

Another text string inside the game also shows that a feature to check the starting line-up in the post-race menu, much like the original Gran Turismo, was meant to be included at some point.

Song Titles

In a similar vein to the original Gran Turismo, GT2.OVL contains titles for the game's streamed music which are never seen during normal gameplay.

Japan	North America	Europe
M01J M03J M04J M05J M07J M08J	Apollo 440 - Cold Rock the Mic Garbage - I Think I'm Paranoid Rob Zombie - "Dragula" Remix Soul Coughing Stone Temple Pilots - Sex Type Thing The Crystal Method - Now Is The Time	Alex Grifford - BIG DOG Ash - Death Trip21 Everything But The Girl - Blame Fatboy Slim In Heaven GT2 Remix ManSun - Take It Easy Stereophonics - Bartender & The Theif

The first set of songs depends on the game's region, corresponding to the first six tracks in internal order. The Japanese version has short four-letter codes for its entries (with "M02J" and "M06J" skipped), while the other two attempt to list the artist and song titles with varying degrees of success.

ohira_01
ohira_02
ohira_03
ohira_05
ohira_06
ohira_07
ohira_08
ohira_09
ohira_10
ohira_11
ohira_13
ohira_14
ohira_15
ohira_16
ohira_18

The second set corresponds to the other 15 tracks, which include pre/post-race menu music, race start/finish jingles and other short pieces composed by Isamu Ohira.

Unused Music

Two short musical pieces are left unused within MUSIC.DAT, located next to the normally used start and finish jingles in internal order.

Unused Tuner IDs

"Tuners" are what the developers define manufacturers and brands in the games; in this game, it defines which car goes to which dealership for tuning (the game will throw a "Your car cannot be tuned here" error message if the car's current tuner and the dealership's tuning shop mismatches) as well as used car listing definitions. There are 36 tuners defined in the game, stored in alphabetical order; however, there are three tuner IDs that are not used by any car in the game:

• 0C - located between Honda (0B) and Jaguar (0D).A possible candidate is Infiniti, which has trackside advertisements despite they appearing only in the US version of the game as a name swap for the Nissan Primera sedan models.
• 0F - located between Lancia (0E) and Lister (10). A possible candidate is Lexus, whose cars are sold and tuned in the Toyota dealership in-game. Of note is that this ID was not documented in the source mentioned below, although the other two are documented.
• 14 - located between Mercedes-Benz (13) and Mini/MG (15). A possible candidate is Mercury, whose cars are sold and tuned in the Ford dealership in-game.

(Source: James McDaniel, RogsR34UK)

Unused Demonstration Replay File

Built-in demonstration replays are stored in compressed replay files named demofile.gmr (with _eu, _jp or _us suffixes in versions from December 8 onwards), found within the arcade directory of GT2.VOL. However, an unused, uncompressed demofile.gmr also exists, containing a set of five replays that appear to have been used for testing purposes. This file is dated about five days before the one used in the earliest Japanese retail build, and attempting to load its contents in-game results in broken replays due to car data and file structure differences.

No.	Title	Mode	Course	Grid
1	FROM GARAGE	Arcade Mode Race	Autumn Ring (autumn)	HONDA S2000 (h2s2n) BMW 328i (gb28n) Fiat Coupe (iictn) Mercedes-Benz CLK320 Sport (gm32n) Lancia Delta HF Integrale (ilden) Alfa 156 2.0 TS 16V (ia54n)
2	ARCADE ONLY	Time Attack	Kart (cart)	MAZDA RX-7 Type RS (a28sn)
3	ARCADE RACE	Arcade Mode Race	Seattle Short Course (seatt_s)	Lotus ELISE 190 (io19n) Corvette Coupe '96 (ccrcn) R34 SKYLINE GT-R Vspec (n24vn) Tommy Kaira ZZ-S COUPE (k2zzn) MUSTANG SVT Cobra '99 (ufc9n) MAZDA RX-7 Type RS (a28sn)
4	GT RACE	GT Mode Race	Midfield Raceway (parma)	NSX Type S Zero (hnsnn) DAIHATSU MIRA TR (q2trn) MAZDA AZ-1 (a2azn) SUBARU VIVIO RX-RA (s2v4n) TOYOTA Vitz F (t2vzn) SUZUKI ALTO WORKS RS-Z (x2a8n)
5	LICENSE	License Test	L_Eau-Rouge (test_hs1)	[R]GT-ONE '98 (t2g8r)

Obsolete Replay Directory

As mentioned above, retail builds of GT2 store their demonstration replay data in the arcade directory of GT2.VOL. Older demo builds, however, keep it in a dedicated directory labeled replay, which still exists and is left unused in the final product. While most retail builds contain only zero-byte files in it, the original Japanese release contains 18 more files corresponding to individual demonstration replays, with some actually dating back to the North American demo build from August 30, 1999.

    0 1999/09/21 23:08:21	scea.000
18048 1999/09/21 23:08:21	scea.001
18048 1999/09/21 23:08:21	scea.002
18048 1999/09/21 23:08:21	scea.003
18048 1999/09/21 23:08:21	scea.004
18048 1999/09/21 23:08:21	scea.005
18048 1999/09/21 23:08:21	scea.006
    0 1999/09/21 23:08:21	scea.999
    0 1999/09/21 23:08:21	scee.000
17768 1999/09/21 23:08:21	scee.001
17768 1999/09/21 23:08:21	scee.002
17768 1999/09/21 23:08:22	scee.003
17768 1999/09/21 23:08:22	scee.004
17768 1999/09/21 23:08:22	scee.005
17768 1999/09/21 23:08:22	scee.006
17768 1999/09/21 23:08:22	scee.007
    0 1999/09/21 23:08:22	scee.999
    0 1999/09/21 23:08:22	scei.000
17784 1999/09/21 23:08:22	scei.001
17784 1999/09/21 23:08:22	scei.002
17784 1999/09/21 23:08:22	scei.003
17784 1999/09/21 23:08:22	scei.004
17784 1999/09/21 23:08:22	scei.005
    0 1999/09/21 23:08:22	scei.999

Hidden Texture Text

• Developer Credits
• 

  Most non-racing NSX models, both Acura and Honda use copies of this sheet, and the writing is on them all.

• 

  Mitsubishi FTO variants have a smaller rendition above the mirror on the side-on portion.

• 

  Similar to the FTOs, the Mitsubishi Cyborg R (mmgon) also shares the honour of being tagged.

• 

  The Nissan Sileighty (n-18n) finds the text next to the rear wheelarch, again on the side-on portion.

• 

  Not to be outdone, the Nissan Skyline GTS25t Type M/280 Type MR (n280n), both racing and not, bring a strangely tall S to the party.

• 

  Having the last laugh however are the Nissan Silvia K's/Q's 2000cc (ns23n/nq23n) who give over a truncated license plate style panel to the Polys branding.

• 

  The Nissan 180SX Type S (n18sn) finds its tag underneath the wheel in the top left corner. The Type X variation also has the tag, though next to the wheelarch like the Sileighty above.

• 

  Most Toyota Supras use a copy of this texture, each sports the now familiar text alongside a longer, reversed 'Polys entertainment'.

• 

  Last but not least, the TVR Griffith 500 (vgr5n) and the Blackpool B340 (vgrfn) sport their text within the space where the headlight goes.

A few car textures are inscribed with the word 'polys' in out of the way or unused portions of the image. This refers to Polys Entertainment, the original name of developers Polyphony Digital. It should be noted that these texture tags appear too in the previous game, since these cars originate from there with no significant changes to GT2 except for updated wheels.

• Lancer Evolution ID Codes
• 

  The GSR version of the Evo V (m2g5n) sports '5N' text, presumably for 5 Normal.

• 

  The unused Winfield variant of the Evo V Rally Car (m2w5r) has a smaller '5N' a quarter of the way down the right side.

• 

  Evo V RS racing (m2r5r) changes things up with a '5rs' label. It's also present on the non-racing version texture.

• 

  The Mine's Evo V (m2m5n) keeps it in the family with a '5rs' all of its own.

• 

  Bucking the trend, the used Evo V Rally Car (m2a5r) hides a '5Ar' to the left of the Ralliart logo.

• 

  The Evo VI GSR (m2g6n) doesn't have the 'N' of its Evo V counterpart, instead showing 'gs' alongside the 6.

• 

  The racing version of the Evo VI GSR (m2g6r) changes the designation again, from '6gs' to '6gr'.

• 

  Likewise and like its Evo V counterpart, the RS version (m2r6n) has the 'rs' text.

• 

  Finally, the Evo VI RS racing (m2r6r) and the Evo VI Rally car (m2w6r) have '6rr'.

Mitsubishi Lancer Evolutions are singled out for special treatment. Possibly owing to the fact that the various models differ only slightly, most of their textures forwent the Polys writing in favour of identification text. Some exceptions would be the Evo II, III and IV, whose textures are devoid of any text whatsoever (note the Lancer Evolutions that had those identification text are new to GT2, except for II since the texture sheet were based on the Evo III).