How many buttons do I have

[HoochShepherd]

I assume this is covered here... Somewhere? Just no where I could find.

I am tossing buttons onto a 4 player arcade.  Controller, 6 buttons, and then 2 up top for "coin" and "player" select,

When I am importing my mame collection I am given the option to limit games to how many buttons.  Should I be limiting that to 6 since thats the whats intended to be used or 8 cause it is technically 8 buttons?

 

Thanks in advance!

[Lordmonkus]

Should be 6, the number of buttons the game uses during actual gameplay. Credit and start do not count as far as I am aware.