Delta Game Update

Delta updates install only what has CHANGED since the last running version on your game. Delta updates are released when only game code has been modified.

NOTE: Update will work on any previous updates.

Alien(s) -  v2.2 → 2.3→ 2.4→ 2.5→ 2.6 → 2.7 → 2.8→3.0→3.1→3.2->4.0->4.1->4.1.1




Start by downloading the latest available "Delta Update" for your game.: file is attached at the bottom of this page.

Both WINDOWS and MAC USERS: Click on the download button.

Save to download folder.


It have come to our attention that newer USB sticks don't work, please use old type 2.0 USB sticks

Once the ZIP file is downloaded, insert your USB stick into your computer. (greater than 8GB)

You should see a new "USB DISK" in My Computer (Windows)

or a new Drive on MAC Desktop that looks like this:

Please ensure that the USB stick has been formatted correctly prior to STEP 3.

WIN Format: FAT32



Copy the UPD file you downloaded to the USB stick.


Safely eject your USB stick.:

Right click on USB (D:) and select Eject.

It will now disappear from your "My Computer / This PC"


Power on pinball machine.

wait for it to boot up.

Remove the translite.

Insert the USB stick in one of the USB connectors on top of the screen (which one does not matter) 


Enter Service menu -> Actions -> GAME UPDATE 

-> Enter.

A new screen will appear.:

Make sure you have the USB connected. And press Enter. (Black button)


After update game will reboot and you can verify date and version number is updated to 4.1



ALIEN 4.1.1

Changes since version 4.1:

- Free Play is now the default.

- Fixed the default coin auditing to match the coin door configuration

  shipped from the factory.

- Added many new topper & flasher effects.

- Allow staged flipper stacks to be reversed for each flipper.

- Renamed OPEN DOOR SAVE adjustment to BALL SAVE AFTER TEST, to make it

  more clear how this works (we can't detect when the door is open).

- Fixed case where all the balls were out of play, but the game would not

  end the ball.  This could happen in rare conditions when a ball was

  locked in the hypersleep chamber.

- Changed so that the drop bank is not reset at the end of multiball

  if all of the targets are known to be up already.

- Increase the time that the posts are kept up on the orbits by half a


- Fixed the airlock display timer pausing or abruptly jumping sometimes.


January 16, 2024

Changes since version 4.0:

Fixed the Empty Balls test not working.

Increased volume on many of the new Ripley callouts.

Fixed several Ambush videos that were cut off at the bottom.

Fixed the weapon standups remaining blue if the mode ended during

 phase 1.

Fixed an incorrect "Pinball Missing" message if ball is on the shooter

 and the hypersleep lock switches have false readings.

Added hypersleep lock mech to ball search.  It will not activate

 until the third ball search if there is a ball locked, to try to

 preserve game state.

APC drop targets are now reset at the end of any multiball.

Added 5 seconds of time to the clock when any shot is made

 during phase 1 of Loader Battle, to compensate for only 1 shot

 being lit at a time.

Added more topper & flasher effects.

Fixed game crashing if all ball drained quickly after all modes

 were completed (i.e. during the grace period of Self Destruct

 or Loader Battle) AND you had entered the multiball phase of

 the mini-wizard mode.


December 5, 2024

Changes since version 3.2:

Added Ripley into audio/video throughout the game.

  NOTE: the line "get away from her you..." is included, but will be

  disabled when Adult Content is set to OFF.

Changed pop bumper scoring on Derelict Ship and Queen's Nest not to

  restart the display effects on every pop.

Added rule for mystery award on airlock.  During single ball play,

  when the ball falls into the airlock from the back, a small bonus

  is awarded and the ball is then quickly returned to play.  The score

  is currently based on the number of standup targets hit previously.

Added page numbers onto the test menus when there is more than 1

  screen of options (e.g. 1/2 would indicate that there are 2 pages

  and you are on page 1).

Added support for topper & flasher kits.  Added new "Flasher Test"

  to exercise all of the new flashers.  
Note: topper/flashers require firmware version 0.72 or greater.

Fix bug that could cause the trough to empty balls continuously, when

  a ball gets stuck in the trough, but not resting on any of its switches.

Fix bug that could cause the shooter to fire continuously during a

  ball search, if the shooter switch is reporting false readings.

Fix the airlock display continuing to show "start mode" messages

  once the game is over.

Various system fixes like:

    - Added Open Door Ball Save adjustment.  To pause the game, open the

      coin door and press Enter to go into test mode.  When leaving the

      game, any balls that were previously in play but drained will be

      returned to the player.

    - Fixed center drain audit not calculating correctly.

    - Fixed occasional garbage characters showing on high score entry.

    - Fixed incorrect ball counting after ball disappears from a device


    - Removed missing ball errors reported when entering test during game

      (they are not truly missing, they are just in play).

    - Activate knocker on high score, even if credit award disabled.

    - Fixed sound test not looping the background music selections.

    - Fixed lamps not always updating correctly during the final

      1 second of a mode.

Added match sequence at end of game.  Minor scoring changed to randomize

  the last two digits more.  Use adjustment "MATCH CHANCE" to control the

  probability, or set to OFF to disable.


February 7, 2023

Changes since version 3.1:

Changed video initialization to address the black screen issue

  on powerup.

Added error checking to the xenomorph ball grab, so that if it does

  not reach the home position within the expected time, it will try


Improved communications between game code and firmware when configuring

  the center magnet hold time.

Fixed bug where the center magnet may not be stopped while the

  tongue is trying to pull the ball into the xenomorph.

Added back "Magnet Capture Time" adjustment.  Changing this should

  not be required, but added back by request.

 Improved reliability of the firmware update function.

Added the Ball Device Test.  This allows you to test any ball holding

  device (trough, hypersleep lock, etc.) and be able to pulse the coils

  while seeing the switches at the same time.  Use Up/Down buttons

  to select a ball device; Enter to perform an action (release

  1 ball, lock ball, empty); or Start to change the action.

Fixed bug when starting Ambush via skill shot, which could cause the

  next Ambush to require many more hits than necessary.

Fixed the high score auto-reset adjustment when set to OFF.  In some

  cases, it was still resetting the high scores.

Fixed a ball counting issue with the trough when a ball jam occurred

  at a specific time during a ball release.

Handled case when adjustment "Replay Award" was set to Extra Ball,

  and "Max Extra Balls" was set to 0.  Individually, each adjustment

  works as advertised, but the combination of the two together would

  cause a restart whenever a replay was achieved.

Fixed adjusting the replay levels from their defaults.

Stopped the knocker sound when high score credits are disabled.

Renamed "System Update" function to "Game Update".

16 December 2022

Changes since version 3.0:

Added support for Weapon Target 5 LED.

Improved xenomorph tongue extension.  This requires firmware 0.70.

Disabled xenomorph sounds from center magnet in test mode.

Disabled sounds from flipper buttons in attract, when adjustment

Attract Mode Sound is set to NO.

Fixed the Total Earnings audit.  Its value was not maintained correctly after using the Clear Audits function.

Changed the Timed Plunger adjustment to allow the timeout to be specified, rather than just on/off.

Removed the adjustment Magnet Capture Time.  The on time for the center magnet when catching the ball is not adjustable anymore.

Fixed error reporting from the System Update and Firmware Update functions. Often, these would report "unknown error 0" if something went wrong. The correct error messages are now displayed.

For LV owners:

  • Combined with Firmware 0.71, Improved switching shaker off at startup.
  • Enhanced beacon driver.  When firmware 0.70 is detected, a new control method is used that is more efficient.
  • Staged flippers on LV when firmware 0.70 is present.


->  Update 2.6 is archived here if needed: File size is about. 40MB  link: pbap26.upd  <-


Andrea DM
PB Support TEAM