Prototypes
From Sega Retro
On rare occasions, incomplete versions of video games find their way to the general public. As these copies differ from their final counterparts, they can often provide an insight into the original vision of the game, before deadlines or technical or design restrictions led the development team down a different path.
This category covers prototype versions and release candidates of games made available to the public, both those which made it to retail, and those which did not.
Pages in category "Prototypes"
The following 117 pages are in this category, out of 342 total.
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- Sonic the Hedgehog CD (Mega-CD prototype; 1993-07-12)
- Sonic the Hedgehog CD (Mega-CD prototype; 1993-08-01)
- Sonic the Hedgehog CD (Mega-CD prototype; 1993-08-06 PAL)
- Sonic the Hedgehog CD (Mega-CD prototype; 1993-08-06)
- Sonic the Hedgehog CD (Mega-CD prototype; 1993-08-19)
- Sonic the Hedgehog CD (Mega-CD prototype; 1993-09-20)
- Sonic the Hedgehog CD (Mega-CD prototype; 1993-10-13)
- Sonic the Hedgehog CD (Windows PC prototype; 1995-09-07)
- Sonic the Hedgehog CD (Windows PC prototype; 1995-09-14)
- Sonic the Hedgehog Pocket Adventure (prototype; 1999-10-22)
- Sonic the Hedgehog Triple Trouble (prototype; 1994-08-08)
- Sonic the Hedgehog Triple Trouble (prototype; 1994-08-16)
- Sonic the Hedgehog's Gameworld (prototype; 1996-07-01)
- Sonic the Hedgehog's Gameworld (prototype; 1996-07-19)
- Sonic the Hedgehog's Gameworld (prototype; 1996-08-02)
- Sonic the Hedgehog's Gameworld (prototype; 1996-08-08)
- Sonic Unleashed (Xbox 360 prototype; 2008-10-14)
- Sonic Unleashed (Xbox 360 prototype; 2008-10-28)
- Sonic X-treme (prototype; 1996-07-14)
- Sonic X-treme (prototype; 1996-07-18)
- Sonic X-treme (V40 prototype)
- Space Harrier (32X prototype; 1994-09-20)
- Star Wars Arcade (prototype; 1994-08-30)
- Stellar Assault (prototype; 1995-02-06)
- Stellar Assault (prototype; 1995-02-13)
- Stellar Assault (prototype; 1995-02-22)
- Stellar Assault (prototype; 1995-03-02)
- The Story of Thor: A Successor of the Light (prototype; 1994-04)
- The Story of Thor: A Successor of the Light (prototype; 1994-10-04)
- The Story of Thor: A Successor of the Light (prototype; 1994-10-17)
- The Story of Thor: A Successor of the Light (prototype; 1994-11-01)
- The Story of Thor: A Successor of the Light (prototype; 1994-11-15)
- Streets of Rage 2 (Mega Drive prototype)
- Streets of Rage 3 (prototype; 1994-03-09)
- Striker (Mega Drive) (prototype)
- Super Columns (prototype; 1994-11-11)
- Super Columns (prototype; 1994-11-30)
- Super Columns (prototype; 1994-12-15)
- Super Columns (prototype; 1994-12-21)
- Super Columns (prototype; 1994-12-26)
- Super Columns (prototype; 1994-12-28)
- Super Columns (prototype; 1995-01-06)
- Super Columns (prototype; 1995-01-09)
- Super Monkey Ball Jr. (prototype; 2002-08-06)
- Sylvester and Tweety in Cagey Capers (prototype; 1993-10-11)
T
- Tails Adventures (review prototype)
- Taz in Escape from Mars (Game Gear prototype; 1994-05-11)
- Taz in Escape from Mars (Game Gear prototype; 1994-08-10)
- Taz in Escape from Mars (Game Gear prototype; 1994-08-19)
- Taz in Escape from Mars (Game Gear prototype; 1994-08-30)
- Taz in Escape from Mars (Mega Drive prototype; 1994-03-09)
- Taz in Escape from Mars (Mega Drive prototype; 1994-04-18)
- Taz in Escape from Mars (Mega Drive prototype; 1994-05-09)
- Taz in Escape from Mars (Mega Drive prototype; 1994-05-18)
- Taz in Escape from Mars (Mega Drive prototype; 1994-05-23)
- Taz in Escape from Mars (Mega Drive prototype; 1994-06-02)
- Taz in Escape from Mars (Mega Drive prototype; 1994-06-07)
- Taz in Escape from Mars (Mega Drive prototype; 1994-06-10)
- Tempo (prototype; 1994-12-29)
- Tempo (prototype; 1995-01-21)
- Tempo (prototype; 1995-01-24)
- Tempo (prototype; 1995-01-26)
- Tempo Jr. (prototype; 1994-11-28)
- Tempo Jr. (prototype; 1994-12-05)
- Tempo Jr. (prototype; 1994-12-12)
- Tempo Jr. (prototype; 1994-12-26)
- Tempo Jr. (prototype; 1995-01-17)
- Tempo Jr. (prototype; 1995-01-20)
- Tempo Jr. (prototype; 1995-01-31)
- Tempo Jr. (prototype; 1995-02-06)
- Tempo Jr. (prototype; 1995-02-15)
- Thunder Force III (prototype; 1990-08-01)
- ToeJam & Earl in Panic on Funkotron (prototype; 1993-08)
- Toy Story (sample)
- Trouble Shooter (prototype; 1991-05-28)
- Trouble Shooter (prototype; 1991-09-12)
- Turbo OutRun (Mega Drive prototype; 1991-12-09)
- Twin Hawk (prototype; 1990-04-06)
V
- Valis: The Fantasm Soldier (prototype; 1991-10-25)
- Vectorman 2 (prototype)
- Viewpoint (prototype; 1994-07-22)
- Virtua Fighter (32X prototype; 1995-05-30)
- Virtua Fighter (32X prototype; 1995-07-26)
- Virtua Fighter 2 (Mega Drive) (prototype; 1996-08-19)
- Virtua Racing Deluxe (prototype; 1994-08-22)
- Virtua Racing Deluxe (prototype; 1994-08-29)
- Virtua Racing Deluxe (prototype; 1994-09-05)
W
X
- X-Men 2: Clone Wars (prototype; 1994-05-06)
- X-Men 2: Clone Wars (prototype; 1994-11-23)
- X-Men 2: Clone Wars (prototype; 1994-12-02)
- X-Men 2: Clone Wars (prototype; 1994-12-03)
- X-Men 2: Clone Wars (prototype; 1994-12-06)
- X-Men: Mojo World (prototype; 1996-06-05)
- X-Men: Mojo World (prototype; 1996-06-13)
- X-Men: Mojo World (prototype; 1996-06-24)
- X-Men: Mojo World (prototype; 1996-06-25)
- X-Men: Mojo World (prototype; 1996-06-27)
- X-Men: Mojo World (prototype; 1996-06-28)
- X-Men: Mojo World (prototype; 1996-06-29)
- X-Men: Mojo World (prototype; 1996-07-05)
- X-Perts (prototype)
Z
- Zaxxon's Motherbase 2000 (prototype; 1995-02-10)
- Zaxxon's Motherbase 2000 (prototype; 1995-02-21)
- Zaxxon's Motherbase 2000 (prototype; 1995-02-23)
- Zaxxon's Motherbase 2000 (prototype; 1995-02-27)
- Zaxxon's Motherbase 2000 (prototype; 1995-03-03)
- Zaxxon's Motherbase 2000 (prototype; 1995-03-06)
- Zaxxon's Motherbase 2000 (prototype; 1995-03-10)
- Zaxxon's Motherbase 2000 (prototype; 1995-03-15)
- Zaxxon's Motherbase 2000 (prototype; 1995-03-31)
- Zillion II: The Tri Formation (prototype)