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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08000 Graphics Minor Always Jun 4, 2021, 07:35 Jun 4, 2021, 19:12
Tester jkburks View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10 (64-bit)
Status [?] Acknowledged Driver mermaid.cpp
Version 0.231 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08000: yachtmn, mermaid: missing or misplaced graphic animations
Description There is a sequence on level 3 where the player gets attacked by walruses or sea lions. I'm not 100% sure what they are supposed to be. In MAME these animals are static sprites with no animation. On the PCB they do a flip animation in the water and also whenever they cross land.

There is also a bug in MAME where the large wave animation randomly becomes attached to the RANK text in the sidebar. It stays there until the screen is redrawn. This is not supposed to happen.
Steps To Reproduce Play until you see the sea lions on level 3.
Or load the attached 7.sta in MAME 0.231
Then refer to the PCB video timestamp below to compare.

The Rank bug is difficult to predict.
 Just load the attached 9.sta in MAME 0.231
Additional Information Recent long play video from Yachtsman PCB.

00:08:57 is the timestamp for the missing animations.

Attached screenshot of the flip animations from the above video:

Also attached enlarged snap of the Rank bug. There does not appear to be any race condition or rank position that triggers this bug. I have had it happen at all different times, ranks, and levels.
Github Commit
Regression Version
Affected Sets / Systems yachtmn, mermaid
Attached Files
jpg file icon yachtsman_rank_bug.jpg (63,288 bytes) Jun 4, 2021, 07:35 Uploaded by jkburks
jpg file icon yachtsman_missing_animation.jpg (45,442 bytes) Jun 4, 2021, 07:36 Uploaded by jkburks
zip file icon (3,982 bytes) Jun 4, 2021, 07:36 Uploaded by jkburks
Yachtsman bug save states MAME 0.231
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