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Dip-Switch Settings
When
the board arrived in my collection the difficulty level was
obviously set at very easy, the number of lives were 5, the
free play feature wasn't selected, and the screen needed to
be flipped. Unfortunately, the person who supplied me the board
didn't know what the switch settings were. My first step was
to search around the internet for the settings. I tried Spies,
Coinop.org and even Klov in an effort to obtain the settings,
but no luck.
Once this avenue of investigation had been exhausted, it was
time to put a request out to the UKVAC (UK Video Arcade Collectors)
mailing list, to see if anyone there had the settings. The only
response I had was from a certain Chris Hardy, a well-known
Mame contributor, who had dug around the Mame source code and
found the settings. Unfortunately, because the way the Mame
code referenced the Bombjack Twin code, the settings were actually
upside down and back to front to the ones he listed. Some faffing
around with his settings and my board, I finally managed to
put together the correct Bombjack Twin dip-switches.
Here are the settings. Many thanks go to Chris Hardy for taking
the time and effort to help me get to the bottom of this and
get the switch settings on to the internet at last.
Dip-bank
1
1-1 Lives
1-2 Lives
1-3 Difficulty
1-4 Difficulty
1-5 Start Country 0-7
1-6 Start Country 0-7
1-7 Start Country 0-7
1-8 Flip Screen
Dip-bank 2
2-1 Coin-A
2-2 Coin-A
2-3 Coin-A (all ON = freeplay)
2-4 Coin-B
2-5 Coin-B
2-6 Coin-B
2-7 Demo Sounds on/off
2-8 Unknown
Secret
Test Mode
The
secret test mode is quite hard to access, but by following these
instructions, you should be able to get onto it. Many thanks
go to Tobias Steffens for passing these details on to me.
(1) - Reset the game and hold down buttons 1 and 2 for player
2. If you have done this fast enough, you will see a `READY?`
message on screen. If you do not, you will need to try again.
(2) - Now, press the following buttons for player 1: 2, 2, 2,
1, 1, 1, 2, 2, 2, 1, 1, 1. If you have done this correctly,
you should now see another message which reads `9th Mar 1992`.
(3) - You are now in the test mode.
Home
Versions
As
far as I am aware, no home versions of Bombjack Twin were ever
released.
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