6 Dec 2017

Sega Mark III - Sega Sports Pad game hack


An other Sega oddity. As far as I know only 3 games were developed to make use of the Sega Sports Pad which is a kind of trackball device. Again, it's impossible to play them with a standard pad.
I've made a hack for Great Ice Hockey to be able to play with standard controllers (supports both players).


Great Ice Hockey:


Download link:



Cheksum has been fixed so the game runs fine on a US/EUR console (if someone ever wants to make a cartmod).


Technical part:
Horizontal speed for player 1 is stored in RAM @ $C018
Vertical speed for player 1 is stored in RAM @ $C019
Horizontal speed for player 2 is stored in RAM @ $C01A
Vertical speed for player 2 is stored in RAM @ $C01B

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