I've been downloading some old magazine scans lately and found a few pages pertaining to some unreleased games, and some early pictures of games. Here are some of them below. These are all from magazines from the year 1993.

Sound Factory is a cancelled game. I think it was developed to be the killer ap for the SNES mouse but Mario Paint wound up being that. It's some music game that uses the mouse.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/electronic_gaming_monthly_051_-_199.jpg]Sound Factory for SNES[/url]

Another Sound Factory scan.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_086.jpg]Sound Factory[/url]

I don't know how different this is from final, but the names for characters are different.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/electronic_gaming_monthly_051_-_-1.jpg]Virtua Fighters with proto names for characters[/url]

Before it's cancelation Pit Fighter 2 had a small preview article in EGM.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_049_1993_aug_134.jpg]Pit Fighter 2 EGM feature[/url]
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_049_1993_aug_135.jpg]Pit Fighter 2 EGM feature[/url]

I'm not sure if any of these photos are different than final since I never played it, but here's the scan, just in case.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_049_1993_aug_132.jpg]Virtua Racers for Genesis[/url]
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_049_1993_aug_133.jpg]Virtua Racers for Genesis[/url]

I think this is Monster World 4, and the HUD looks a bit different I think.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_049_1993_aug_074.jpg]Monser World 4[/url]

I think I've seen this page floating around the net before, but here it is again anyway. A few of the graphics look different. Especially in the cutscenes.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_240.jpg]Castlevania Bloodlines[/url]

Dirt Racers is a FX game by Elite which I believe was never released.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_154.jpg]Dirt Racers[/url]
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_155.jpg]Dirt Racers[/url]

Dune Buggies, it could possibly be Dirt Racers.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_097.jpg]Dune Buggies[/url]

Peter pan for 3do was based on the disney version.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_135.jpg]Peter Pan[/url]

Impossible Mission 2025 was released, but this SNES conversion never was.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_095.jpg]Impossible Mission 2025[/url]

Socks the cat, a cancelled game star Bill Clintons former cat.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_131.jpg]Socks the Cat[/url]

A socks the cat advertisment. This game recieved a lot of advertising as I've seen ads in more than one magazine over the course of a few months.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/GamePro_Issue_051_October_1993_007.jpg]Socks the Cat[/url]

Early N64 preview with very un N64 graphics. N64 graphics have never looked this sharp.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_082.jpg]N64[/url]

A article about the Sega CD game genie. It was supposed to fit between the genesis and sega cd on model 2.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_064.jpg]Game Genie[/url]

There was originally gonna be 8 new characters in Super Street fighter but it was cut to 4 due to SNK hiring away several of Capcoms staff.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_060.jpg]SSF[/url]

This proto NES2 controllers looks half generic, half nice.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_052_1993-11_022.jpg]NES[/url]

This one handed SNES controller was branded as a RPG controller I think before it was cancelled. I think I pre-ordered one. I was real dissapointed that it didn't come out because I was really anticipating it.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_046_1993-05_070.jpg]SNES controller[/url]

Early in its life Square branded SOM as Final Fantasy Adventure 2. Other than the name only the HUD seems to be different. Though that doesn't show much, probably due to me using photobucket as a host. The numbers showing the current health are missing but the max health is there. I also think that npc is not in the final game.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/egm_045_1993-04_090.jpg]Secret of Mana[/url]

Probably everyone that read game magazines during the Genesis era knew about Sega VR. I believe all 4 of the games listed for it were cancelled.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/SegaVisionsIssue14-Aug-Sept1993_Pag.jpg]Sega VR[/url]

Another article about Sega VR, this time getting delayed until June 1994. If we ever found protos of those games we might not even be able to play them for a while as they were supposed to use some new chip to increase screen resolution. Also note Top Gun 2 which was meant to begin filming after Interview with the vampire. I'm glad that was cancelled.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/Game_Players_Nintendo_Sega_1993_Nov.jpg]Sega VR[/url]

Tiny Toons for Jaguar. It looks boring, maybe that's why it was cancelled.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/GamePro_Issue_052_November_1993_162.jpg]Tiny Toon Adventures[/url]

This very generic level in the GB version of Mortal Kombat was not in final I believe.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/GamePro_Issue048_July_1993_Page46.jpg]Mortal Kombat GB[/url]

Annet Again is a followup to el-viento. It was not released in the US. It was a Sega CD game so there was animated cutscenes. The game looks sort of golden axe-ish.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/Electronic_Gaming_Monthly_47_096.jpg]Annet Again[/url]

Steven Segal, the proto for this is easy to find on the internet.
[url=http://i483.photobucket.com/albums/rr196/MathUser/1993%20Magazine%20Scans/Electronic_Gaming_Monthly_47_019.jpg]Steven Segal[/url]