I am using the emulator BizHawk 1.12.0. Well, I already defined all the buttons for Genesis and TurboGrafx-16 (PC Engine), but it really seems to me this emulator is not assigning all the buttons available for these systems.
For example, in Genesis I only have (for Mortal Kombat 2) HIGH PUNCH, Low Kick and High Kick. There is no Low Punch. In Street Fighter for PC Engine I believe only three buttons can be used, too, aside from BLOCK and Start, which appears to be using the same button (L1 is often used for this command, and in here = Start).
This is how it is configured here, for a PS2 controller:
Genesis:
http://i.imgur.com/MqpW7Ga.png
PC Engine:
http://i.imgur.com/ilNVb2E.png
The rest of the options are empty. I did a comparison with Mednafen for PC Engine, and it really looks like to me that at least for this system Mednafen offers more buttons for you to use it.
What did I do wrong? Or there is something I should know about this emulator?