sfchakan
09-30-2011, 07:50 PM
NBA Jam for the Sega Master System was discovered pretty much finished by a SMS Powder webmaster when he thought he purchased a prototype of Hang-On. It was developed by Iguana Entertainment and is dated 1994, which is later than the GG version (93) and makes it extremely likely to be a conversion of. It features a two player mode and supports most of the Game Gear version's cheats. The game is designed to run in PAL mode, which makes it look like the game was intended to be released in Europe. The only thing the cart was missing was a valid header so that it could boot in a proper SMS.
You can download the dumped ROM somewhere on their website, which is here (http://www.smspower.org/).
http://www.segafans.com/wp-content/uploads/2011/09/NBAJam-SMS-TitleScreen.png http://www.segafans.com/wp-content/uploads/2011/09/NBAJam-SMS-06.png
The story is quite a nice one!
I bought several prototypes from someone affiliated to an ex-developer. This particular one was advertised as being an Hang On prototype! As I often do I bought all his Sega 8-bits prototypes anyway.
The package then went on missing. I trusted the seller so at some point I assumed it could have been lost in the mail, then I forgot about it for a bit. Then finally arrived to me after more than two months (with no explanation from the post office).
It wouldn’t run on the Master System and only when I dumped it I found out the surprise that it was NBA Jam! I first thought it was a Game Gear ROM copied to a SMS cartridge but no – the palette is correct and the game include a 2 players mode, so it is indeed a conversion of the game for the Master System.
Now the reason the seller thought it was Hang On is because the ROM image doesn’t contain a valid Sega header. So running it on an unmodified western Sega Master System would show a software error screen or revert to the game in the console.. which happened to be Hang On.
So I believe the list of "active" consoles that didn't receive a port of NBA Jam is probably shorter than the ones that did at this point.
You can download the dumped ROM somewhere on their website, which is here (http://www.smspower.org/).
http://www.segafans.com/wp-content/uploads/2011/09/NBAJam-SMS-TitleScreen.png http://www.segafans.com/wp-content/uploads/2011/09/NBAJam-SMS-06.png
The story is quite a nice one!
I bought several prototypes from someone affiliated to an ex-developer. This particular one was advertised as being an Hang On prototype! As I often do I bought all his Sega 8-bits prototypes anyway.
The package then went on missing. I trusted the seller so at some point I assumed it could have been lost in the mail, then I forgot about it for a bit. Then finally arrived to me after more than two months (with no explanation from the post office).
It wouldn’t run on the Master System and only when I dumped it I found out the surprise that it was NBA Jam! I first thought it was a Game Gear ROM copied to a SMS cartridge but no – the palette is correct and the game include a 2 players mode, so it is indeed a conversion of the game for the Master System.
Now the reason the seller thought it was Hang On is because the ROM image doesn’t contain a valid Sega header. So running it on an unmodified western Sega Master System would show a software error screen or revert to the game in the console.. which happened to be Hang On.
So I believe the list of "active" consoles that didn't receive a port of NBA Jam is probably shorter than the ones that did at this point.