> > it appears that the game only has the correct behavior when the 'flipscreen' > > dipswitch is active. (in that case, in upright mode, both player 1 and 2 are the > same > > orientation) > > > > this could just be the way the original game is designed even if it is somewhat > > awkward. > > Ok. Thanks for your fast reply Haze.
Robbbert actually found a clean solution for that, looks like 2 incorrect assumptions in the driver were adding up to cause this issue, but it should now be actually fixed properly
https://github.com/mamedev/mame/commit/7d0a291961b8d6421cc81c2578e805379c86a6d5
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