Hi. I was playing some dodonpachi dai ou jou this morning and noticed that when I was inserting quarters into my machine it wasn't registering. My coin mechanical switch is mouseb2 in MAME. I noticed that this game cannot see credits unless the coin button is held down for about a half a second. Anything less and the game doesn't see it.
This happened in another cave game with me as well, I thinking mmpork. I never had a problem with any other games in Mame. You can tap the coin button and the game sees it.
Is this a possible bug or should I try to tweak the credit arm on my coin mech?