> I can't seem to get frogger to work with MAMEBoy. I use the same rom that works
> fine in MameCE and MAMEBoy acts like it's not there. Any thoughts?

I believe the ROMs for frogger were changed slightly in the b36 release beta's that these versions of MAME are based on. Now that MAME.DK is no longer I cannot check the release history. You probably need to different version or frogger was not included in the driver set.