Your Galaga source!

The Galaga Enhancement Pack v4.6 is an upgrade which adds new features...

Midway/Namco Pack
Gallag/Nebulous Bee Bootleg Pack

The Galaga Enhancement Pack! Only $45. To order, call 1-800-514-9506


Many new features have been added since the begining...

Features available with version 4.6:

  • High score save keeps scores after the game/board is powered off
  • DEMO mode now available with... FREEPLAY enabled and or credits!
  • Selectable on screen fire option can be enabled or disabled and shot speed set via dipswitch settings
  • Fast or original fire speed - selectable on screen per game, per player. Choose speed from on screen menu!
  • Support for 8 digit scores! Players can achieve and record scores up to 99,999,990!
  • Fast start up test. Most of the on screen testing is bypassed, start up is 80% faster
  • Level 255 lockup fix. For those who can reach level 255... The game is not over.
  • Adds support for FREE PLAY on Gallag and Nebulous Bee bootleg PCBS! No need for
    opening the coin door or adding a credit button! (Note: Freeplay is optional by setting the dip switches 1, 2 & 3 on)
  • Support for Gallag and Nebulous Bee bootleg PCBs
  • Title change from: "GALLAG" or "Nebulous Bee" on the attract screen to "GALAGA".


Dip switch settings:

Switches 6 & 7 on the bank at "6J" control the fire speed selection.
Switch Bank 6J
Selectable fire SW #1 SW #2 SW #3 SW #4 SW #5 SW #6 SW #7 SW #8
Enable selectable fire menu - - - - - OFF - -
Set fire speed Fast, no selectable menu - - - - - ON OFF -
Set fire speed Normal, no selectable menu - - - - - ON ON -

Switches 1, 2 & 3 on the bank at "6K" control free play.
Switch Bank 6K
Coins per credit SW #1 SW #2 SW #3 SW #4 SW #5 SW #6 SW #7 SW #8
FREE PLAY ON ON ON - - - - -
4 Coins = 1 Credit ON ON OFF - - - - -
3 Coins = 1 Credit ON OFF ON - - - - -
2 Coins = 1 Credit ON OFF OFF - - - - -
2 Coins = 3 Credits OFF ON ON - - - - -
1 Coin = 3 Credits OFF ON OFF - - - - -
1 Coin = 2 Credits OFF OFF ON - - - - -
1 Coin = 1 Credit OFF OFF OFF - - - - -


Installation instructions for an original Midway Galaga PCB:

The SRAM PCB & chip go in locations 4M & 3J (#5).
Note: Make sure the new chips are turned the same direction as the rest of the chips on the board.
Remove the Z80 processor and install it on the new board, then install the board where the Z80 processor was.


Installation instructions for an original Namco Galaga PCB:

The SRAM PCB & chips go in locations Z80 and 3F (#5).
Note: Make sure the new chips are turned the same direction as the rest of the chips on the board.
Remove the Z80 processor and install it on the new board, then install the board where the Z80 processor was.


Installation instructions for a Gallag bootleg PCB:

First remove the daughter board and set it to the side. (Remember which way it goes back in)
The SRAM PCB & chips go in locations 5B, #5 and #6.
Note: Make sure the new chips are turned the same direction as the rest of the chips on the board.
Remove the Z80 processor and install it on the new board, then install the board where the Z80 processor was.


Installation instructions for a Nebulous Bee bootleg PCB:

The SRAM PCB & chips go in locations Z80, #5 and #6.
Note: Make sure the new chips are turned the same direction as the rest of the chips on the board.
Remove the Z80 processor and install it on the new board, then install the board where the Z80 processor was.


Last updated on 04-29-2008 by sgregory@arcadeshop.com

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