Well, I hacked my way through it a bit... I ended up modifying this code in atarysy1.cpp: m_cur[player][0] = posx + posy; m_cur[player][1] = posx - posy; I changed it to m_cur[player][0] = posx; m_cur[player][1] = posy; ...and recompiled MAME. Then went in and adjusted the X direction to be reversed...

Hi everyone, had a question: I'm using mame 250 in windows with an original Marble Madness control panel and have everything working great except for the fact that the original Marble Madness control panel has the trackballs mounted at a 45 degree offset so it's not just a matter of changing X and Y...