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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07251 Documentation Trivial Always Mar 3, 2019, 02:04 Mar 6, 2019, 17:28
Tester chaneman View Status Public Platform
Assigned To chaneman Resolution Fixed OS
Status [?] Resolved Driver
Version 0.207 Fixed in Version 0.208 Build
Fixed in Git Commit Github Pull Request #
Summary 07251: brkthru: Undocumented Test Mode
Description The following can be copy and pasted somewhere in the Break Thru game driver if found beneficial:

Break Thru contains a Self Test Mode not mentioned anywhere in the
manual. It is accessed by holding down both player 1 and player 2
start buttons while powering up the game. It can be accessed in
mame by holding the buttons down after the game has started then
pressing F3 to reset the game.

The Test Mode performs the following:

RAM TEST :OK or NG response
                    with pcb locations.

DIPSWITCH TEST :Allows checking of
                    settings and switch

CONTROL PANEL TEST :Allows testing of

MIX TEST :Moving images, player
                    and target object

BACK TEST :Background video

SOUND TEST :26 different sounds
                    by pressing the fire

CHECKSUM TEST :Eprom test, OK or NG
                    response with pcb

MONITOR TEST :Grid Pattern.

Each test can be accessed by activating Coin 1 or Coin 2.
Reset the power to the game to get out of test mode.
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems brkthru
Attached Files
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Senior Tester
Mar 3, 2019, 16:58
To be fair a lot of Data East games have similar eg. it's how you find out the build version for Night Slashers.
User avatar
Mar 6, 2019, 17:28
Thanks, I added a note in the driver.