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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08095 DIP/Input Minor Always 22 days ago 20 days ago
Tester Wulfaz View Status Public Platform MAME (Official Binary)
Assigned To Wulfaz Resolution Fixed OS Windows 10 (64-bit)
Status [?] Resolved Driver 8080bw.cpp
Version 0.236 Fixed in Version 0.237GIT Build 64-bit
Fixed in Git Commit d9f1bb5 Github Pull Request #
Summary 08095: gunchamp: "Unknown" dip switch role found
Description In the Gun Champ arcade game by Model Racing, I have figured out what the "Unknown" dip switch does. It decides whether you write your name (set it to OFF) after a high score or not (set it to ON).
Steps To Reproduce 1. Beat the high score (extremely difficult in my opinion. I couldn't beat it) and see the difference with the switch on or off.


OTHERWISE, "HACK" THE GAME TO BEAT THE HIGH SCORE:

1. Open Mame Debug mode.
2. Click the Debug bar and New Memory window
3. Monitor the section "memory/:maincpu/0/:main_ram" (it is between global and stream sections)
4. Run and play. During play, on the first line, change the 6th bit starting from the right to 8 or 9 to get higher score than the original hi-score. Shoot something during gameplay for the score to record just in case.
5. Do Steps 1-4 with the unknown dip switch on or off.
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Affected Sets / Systems gunchamp
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