Super Game Boy SGB TEST PROGRAM DEMO

Super Game Boy SGB TEST PROGRAM DEMO

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I have successfully compiled the long-awaited mysterious tech SDK Demo of the SGB Super Game Boy! Things to note:
-We now know where the SDK listings in various GB and GBC games originated. Remnants of the ATTR_TRN overlay still exists in various commercially released GB/GBC games! This is because they used the same library to compile their games.
-The Player's icon is named "Goon" based on the readme. This is also the same icon that is used in the SGB/SGB 2 to denote enhanced palettes and borders being activated.
-There is no sound driver programmed. The only sound you will hear is the SGB SE A 02 "GAME OVER" as noted in the OEM official Game Boy Programming manual that was given to developers. This SOUND 4102000000 plays when a player is killed by the other player's star attack.
final documents
-Works using original SGB/SGB2 hardware though I had to modify the header to fix the graphics as well.

There are Kirby graphics, a hex display mode ??8-82C-E6A, a few other SOUND functions. No SGB music and other data exists. Appears to be final version. Command listing does appear in several commercially released games. Unknown if listing was made specifically for this demo.
-4 Players can partake in the deathmatch! Just grab 4 SNES controllers and shoot stars at your opponents!
-The demo was likely a quick way to test various SGB functions.
-The game *does* work in original DMG Game Boy modes and may work using link cables.

More info here: https://twitter.com/nensondubois_/status/1353467277241327616


I successfully compiled the Super Game Boy SGB TEST ROM from 1994! Looks like we now know where the ATTR_SET files originated in the SDK listing in various games!



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