Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08611 Graphics Minor Always Apr 24, 2023, 17:19 Apr 25, 2023, 18:07
Tester ICEknight View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10/11 (64-bit)
Status [?] Acknowledged Driver
Version 0.253 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08611: genesis and clones [vecman2 and clones]: Graphic glitches in background with vertical parallax
Description The background of level 14 features a vertical parallax effect, but some of its graphics rapidly change incorrectly when scrolling horizontally.
Steps To Reproduce -Wait for the fourth demo to start or just load the provided savestate for `genesis vecman2` .
Additional Information
Github Commit
Regression Version
Affected Sets / Systems genesis and clones [vecman2 and clones]
Attached Files
gif file icon vectorman2.gif (48,067 bytes) Apr 24, 2023, 17:19 Uploaded by ICEknight
zip file icon (51,631 bytes) Apr 24, 2023, 17:20 Uploaded by ICEknight
related to 06610Acknowledged  megadriv [dhead]: Graphic corruption in the raising platform blocks at stage 4-1 in Dynamite Headdy 
User avatar
Apr 24, 2023, 17:34
Think is the same bug already reported at 06610.
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Senior Tester
Apr 24, 2023, 19:48
definitely looks the same.. I probably know why even (attempt to emulate a window effect glitch that happens on hardware) but at this point I consider the Genesis / MD code to be legacy, it needs rewriting from the ground up, patching over the obvious flaws is just bandaiding it.