Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07580 DIP/Input Minor Always Mar 1, 2020, 19:34 Mar 1, 2020, 23:18
Tester danylopez123 View Status Public Platform MAME (Official Binary)
Assigned To Kale Resolution Bugs That Aren't Bugs OS Windows 10 (64-bit)
Status [?] Resolved Driver
Version 0.219 Fixed in Version 0.220 Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 07580: bjtwin: Test Mode button combination doesn't work.
Description To be able to get to the Test Mode, when starting up the machine or resetting, hold Player 2 buttons 1+2.
Then "Ready?" will appear, when that happens, press Player 1 Buttons in the following order: 2-2-2, 1-1-1, 2-2-2 and 1-1-1.
After that, the release date should apear and you will enter in the Test Mode.

Player 2 Buttons 1+2 works fine in this process, but the part for the Player 1 Buttons doesn't work.
Steps To Reproduce Execute the combination mentioned.
Additional Information
Github Commit
Flags Noted in Source
Regression Version
Affected Sets / Systems bjtwin
Attached Files
There are no relationship linked to this issue.
User avatar
Mar 1, 2020, 22:43
Some code has to be patched out for this to work (see below). The program
remaps button 2 and 3 to button 1, so you can't enter the above sequence.

This really applies to bjtwin only, which has a buggy routine for the service mode.
May as well make some rewording of the note but regardless this bug report is a BTANB to me.