MSH Boss Codes

  Every so often, someone asks about the Marvel Superheroes Boss codes.
  Here they are. Note that this must be done on a Japanese board and
  that you have to do some tinkering with the hardware to make it work.

 Dr. Doom

--Set the game to free play.
--Press and hold down credit switch #1.
--Press start and go to character select screen.
--Then enter the following:

| | short, short+forward, short+forward+roundhouse
O O

or

forward, jab | short, strong
            O

--Let go of the credit switch

 Thanos

--Set the game to free play.
--Press and hold down credit switch #1.
--Press start and go to character select screen.
--Enter the following:

O O
| | fierce, strong+fierce, jab+strong+fierce

or

                                 O
short, roundhouse, strong, strong |

or

O         O
| | O- -O | | O- -O strong
 O         O

--Let go of the credit switch

 Anita

--Set the game to free play.
--Press and hold down credit switch #1.
--Press start and go to character select screen.
--Enter the following:

strong, jab O- short, forward

--Let go of the credit switch

  Obviously, you need the help of the arcade operator or a board of your
  own, because you have to muck around with the insides.

  Also, Anita appears on the win portrait if you finish your 20th, 60th,
  or 100th opponent with an Infinity Special. Ditto for Gouki on the
  40th win. Lin-Lin (Lei-Lei's sister) appears if you do the same on
  your 80th win. After finishing your 108th opponent (!!) with an IS, 8
  Lin-Lins appear in all the selectable colors.