Tikal.: /* Other */

2025-12-20T02:52:04Z

Other

← Older revision		Revision as of 02:52, December 20, 2025
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	!System		!System
			!Labels
	!Date		!Date
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	\|[[Police Academy (Nov 30, 1990 prototype)]]		\|[[Police Academy (Nov 30, 1990 prototype)]]
	\|NES		\|NES
			\|Police PRG 11-30<br />Police CHR 11-30
	\|Nov 30, 1990		\|Nov 30, 1990
	\|Unreleased		\|Unreleased

Tikal.: Created page with "On December 17, 2025, Video Game History Foundation released a set of prototypes and EPROM dumps sourced from Tengen. ==Mystery EPROMs== These prototypes were assembled from a set of loose EPROMs which were also dumped on December 17, 2025. {|class="wikitable sortable" style="margin:auto;" ! !System !Labels !Date !Retail release dates |- |Hydra (Atari Lynx prototype) |Atari Lynx |T08 | |{{RegionDate|US|1992}}{{RegionDate|EU|1992}} |- |Kawasaki Superbike Chall..."

2025-12-20T02:50:59Z

Created page with "On December 17, 2025, Video Game History Foundation released a set of prototypes and EPROM dumps sourced from Tengen. ==Mystery EPROMs== These prototypes were assembled from a set of loose EPROMs which were also dumped on December 17, 2025. {|class="wikitable sortable" style="margin:auto;" ! !System !Labels !Date !Retail release dates |- |Hydra (Atari Lynx prototype) |Atari Lynx |T08 | |{{RegionDate|US|1992}}{{RegionDate|EU|1992}} |- |Kawasaki Superbike Chall..."

New page

On December 17, 2025, [[Video Game History Foundation]] released a set of prototypes and EPROM dumps sourced from Tengen.

==Mystery EPROMs==
These prototypes were assembled from a set of loose EPROMs which were also dumped on December 17, 2025.

{|class="wikitable sortable" style="margin:auto;"
!
!System
!Labels
!Date
!Retail release dates
|-
|[[Hydra (Atari Lynx prototype)]]
|Atari Lynx
|T08
|
|{{RegionDate|US|1992}}{{RegionDate|EU|1992}}
|-
|[[Kawasaki Superbike Challenge (SNES prototype)]]
|SNES
|T04 T05
|
|{{RegionDate|US|Dec 1995}}{{RegionDate|EU|1995}}
|-
|[[Magical Puzzle Popils (Incomplete prototype)]]
|NES
|POPIL PRG1 POPIL PRG2 POPIL PRG3 POPIL CHR0 POPIL CHR1
|
|Unreleased
|-
|[[Pac-Man (Unlicensed prototype)]]
|NES
|PMtest 2 PDAT-L 0445 PMtest 2 CDAT-L 1BE7
|
|{{RegionDate|US|Oct 1988}}
|-
|[[Prince of Persia (Mega Drive prototype C)]]
|Sega Mega Drive
|Pop IC#
|
|{{RegionDate|US|Jan 1994}}{{RegionDate|EU|Apr 1994}}
|-
|[[Power Drive Rally (prototype)]]
|Atari Jaguar
|PDR 5-8 T35 VERSION WITH POWER DRIVE
|
|{{RegionDate|US|Oct 9, 1995}}{{RegionDate|EU|Oct 1995}}
|-
|[[Rampage: World Tour (Game Boy Color prototype)]]
|Game Boy Color
|T11
|
|{{RegionDate|US|Dec 1998}}{{RegionDate|EU|1999}}
|-
|[[The Lawnmower Man (Early SNES prototype)]]
|SNES
|LAWNMOWER MAN SNES (C) 1993 SALES CURVE LTD
|
|{{RegionDate|US|Nov 8, 1993}}{{RegionDate|EU|1993}}{{RegionDate|JP|Feb 11, 1994}}
|-
|[[The Lawnmower Man (Jun 23, 1993 prototype)]]
|Sega Mega Drive
|LAWNMOWER MAN SEGA 0 (C) 1993 SALES CURVE LTD LAWNMOWER MAN SEGA 1 (C) 1993 SALES CURVE LTD SALES CURVE LTD LAWNMOWER MAN SEGA 3 (C) 1993
|Jun 23, 1993
|{{RegionDate|US|1994}}{{RegionDate|EU|Nov 1994}}
|-
|[[Wayne Gretzky and the NHLPA All-Stars (Atari Jaguar prototype)]]
|Atari Jaguar
|T29 T30 T31 T32
|
|Unreleased
|}

==Hard Drive Data==
These prototypes were recovered from a VAX hard drive image. The files had all been deleted, so a reverse-engineering process had to be done to recover them. This also means a few of the prototypes were damaged/incomplete.

{|class="wikitable sortable" style="margin:auto;"
!
!System
!File
!Date
!Retail release dates
|-
|[[European Club Soccer (Oct 8, 1991 prototype)]]
|Sega Mega Drive
|FOO10-08.bin
|Oct 8, 1991
|{{RegionDate|EU|Jul 1992}}
|-
|[[Paperboy & RoadBlasters (May 26, 1990)]]
|Sega Mega Drive
|RDPB0102.bin
|May 26, 1990
|
|-
|[[Pit Fighter II (Apr 5, 1993 prototype)]]
|Sega Mega Drive
|PT204-05.ZIP
|Apr 5, 1993
|Unreleased
|-
|[[Power Wing (Mar 16, 1993 prototype)]]
|Sega Mega Drive
|WING0316.bin
|Mar 16, 1993
|{{RegionDate|JP|Jun 11, 1993}}{{RegionDate|US|Unreleased}}
|-
|[[Prime (May 17, 1994 prototype)]]
|Game Gear
|PRGG517.bin
|May 17, 1994 17:38:00
|Unreleased
|-
|[[Prime (Jun 17, 1994 prototype)]]
|Game Gear
|GGP0627.bin
|Jun 17, 1994 18:09:18
|Unreleased
|-
|[[R.B.I. Baseball '93 (Dec 22, 1992 prototype)]]
|Sega Mega Drive
|RBI12-22.bin
|Dec 22, 1992
|{{RegionDate|US|Jun 1993}}
|-
|[[Spider-Man (Aug 9, 1990 prototype)]]
|Sega Mega Drive
|SPD08-09.bin
|Aug 9, 1990
|Unreleased
|-
|[[Star Mobile (Nov 29, 1991 prototype)]]
|Sega Mega Drive
|STAR.bin
|Nov 29, 1991
|{{RegionDate|WW|Oct 27, 2022}}
|-
|[[The World of Sport: Golf (Feb 25, 1993 prototype)]]
|Game Gear
|
|Feb 25, 1993 14:49:30
|Unreleased
|-
|[[Thunder Force IV (Jun 15, 1992 prototype)]]
|Sega Mega Drive
|TF4-0615.bin
|Jun 15, 1992
|{{RegionDate|JP|Jul 24, 1992}}{{RegionDate|US|1992}}{{RegionDate|EU|1992}}
|-
|[[Xybots II (Nov 16, 1993 prototype)]]
|Sega Mega Drive
|XYB11-16.BIN
|Nov 16, 1993
|Unreleased
|-
|[[Xybots II (1994 prototype)]]
|Sega Mega Drive
|X2.BIN
|1994
|Unreleased
|}
==Other==
This prototype does not match the previous criteria.

{|class="wikitable sortable" style="margin:auto;"
!
!System
!Date
!Retail release dates
|-
|[[Police Academy (Nov 30, 1990 prototype)]]
|NES
|Nov 30, 1990
|Unreleased
|}

==Matches==
The prototypes below match final builds, or builds that were previously released in some shape or form.

{|class="wikitable sortable" style="margin:auto;"
!Game
!System
!width=120px|Source
!Labels/File
!Date
!width=384px|Notes
|-
|Arcade's Greatest Hits: The Atari Collection 1
|SNES
|Loose EPROM
|T09
|
|Matches final US save for 1 byte
|-
|Gauntlet
|NES
|Loose EPROMs
|Gaunt PL 9802 Gaunt PH 94C9 Gaunt C 46F0
|
|Matches the [[Gauntlet (Feb 24, 1988 prototype)|February 24, 1988 prototype]]
|-
|Gauntlet
|NES
|Loose EPROMs
|336001-2011A LO 68AD 336001-2011B HI 883A 336001-2012 4DAB
|
|Matches final US
|-
|Junker's High
|Sega Mega Drive
|Hard drive disk -> Compiled ROM file
|JH09-15.bin
|Sep 15, 1992
|Matches [[Junker's High (Sep 15, 1992 prototype)|a prototype]] previously released by [[Hidden Palace]] on January 1, 2022 (formerly Prototype B)
|-
|Ms. Pac-Man
|Sega Mega Drive
|Loose EPROMs
|PAC L PAC R
|
|Matches final US/EU save for 1 byte
|-
|Off the Wall
|TurboGrafx-16
|Loose EPROMs
|T26 T27 T28
|
|Matches [[Off the Wall (Prototype)|a prototype]] previously released by [[SMSPower.org]] on July 23, 2017
|-
|Power Drive Rally
|Atari Jaguar
|Loose EPROMs
|IC(...) PDR 7-(...) T33 T34
|
|Matches final
|-
|Race Drivin'
|Sega Mega Drive
|Loose EPROMs
|Race Drivin 8-5r IC1 T07
|Aug 5, 1993
|Matches final US
|-
|Relief Pitcher
|SNES
|Loose EPROM
|RP SNS 0
|
|While only the first EPROM exists, it matches final US
|-
|Steel Talons
|Sega Mega Drive
|Hard drive disk -> Compiled ROM file
|STT0225J.bin
|Feb 25, 1993
|Final JP with different header
|-
|Steel Talons
|Sega Mega Drive
|Loose EPROMs
|Steel Tallon 731R IC1 Steel Tall 731R IC2
|Jul 31, 1992
|Matches [[Steel Talons (Jul 31, 1992 prototype)|a prototype]] previously released by [[INDEPENDENT]] on August 26, 1992 (formerly Prototype A)
|-
|Steel Talons
|Sega Mega Drive
|Loose EPROM
|Steel Talons 8-13 IC2
|Aug 13, 1992
|While only the lower EPROM exists, it matches final US/EU
|}

VGHF Tengen lot - Revision history

Tikal.: /* Other */