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Alien vs Predator, Captain America/Avengers and Mystic Warriors have in common?
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Javy3:
They are games that supposedly allow 3 or more players to play simultaneously but I have yet to find a rom that allows it.  I have downloaded a variety of Mystic Warriors and Captain America/Avengers and have only been able to play 2 players sim. at most.  Is there some step or BIOS I am missing or did they just not get translated to MAME?
Malenko:
make sure you are playing the 4 player rom (if that applies) and that the dipswitches are set to 4 player. Any issues with TMNT or Xmen?
Javy3:

--- Quote from: Malenko on April 05, 2013, 10:56:14 am ---make sure you are playing the 4 player rom (if that applies) and that the dipswitches are set to 4 player. Any issues with TMNT or Xmen?

--- End quote ---

That's what I mean.  I can't find a 3-4 player version of any of these games.  I have plenty of 3-4 player games that work and I found with no problem like X-men, TMNT, Knights of the Round, Snow Bros. 2, etc..  But for some reason there are a few games that supposedly are 3-4 player possible games but I just can't find the rom for them that allows it.  That's why I wondered if there just never got to mame or if something else is needed?
Malenko:
DIP SW 1
  --------                               
  1    2    3    4    5    6    7    8
  OFF  OFF  OFF                           1/1  COIN 1
  ON   OFF  OFF                           1/2
  OFF  ON   OFF                           1/3
  ON   ON   OFF                           1/4
  OFF  OFF  ON                            1/6
  ON   OFF  ON                            1/1
  OFF  ON   ON                            1/1
  ON   ON   ON                            1/1
                 4,5,6 SAME AS 1,2,3           COIN 2
                                X         FLIP   
                                      ON  2 COINS TO START 1 TO CONTINUE
                                      OFF 1/1
  DIP SW 2
  --------
  1    2    3    4    5    6    7    8
  OFF  OFF                                3    # OF MEN
  ON   OFF                                4
  OFF  ON                                 1
  ON   ON                                 2
            OFF  OFF                      NORM
            ON   OFF                      EASY     DIFFICULTY
            OFF  ON                       HARD
            ON   ON                       HARDER
                      OFF                 1 OR 2 COIN SWITCH INPUT
                      ON                  1-4 SWITCH INPUT
                           OFF            2 PLAYER MODE
                           ON             4 PLAYER MODE
                                OFF       CONTINUE YES
                                     OFF  DEMO SOUND ON




Looks like you need to toggle the dipswitch in MAME for 4 player mode. Bank 2 switch 6.
Nephasth:
AVP is either a dip setting, or in game menu setting, I forget which exactly. This is one reason why I love LEDBlinky. When I was first setting up my 4 player machine, I'd scroll through the games and the controls would preview light up showing me which games were 3-4 players. If I started a 3 or 4 player game (as indicated by the controls), but it only allowed 2 players to start, usually the number of players could be changed in the dip settings or in game menu (Pretty Soldier Sailor Moon comes to mind too).
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