Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
05851 Graphics Minor Always Feb 23, 2015, 17:16 Dec 23, 2016, 05:48
Tester zaxxon View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS
Status [?] Confirmed Driver system1.cpp
Version 0.158 Fixed in Version Build Normal
Fixed in Git Commit Github Pull Request #
Summary 05851: flicky and clones: background items lag
Description hi, i thought i would report that in the game Flicky and clones, on each level you have some items in the background which you can collect and use (for example, on round 1 there are some flower pots to collect and then throw as weapons).
for these background items, if you are running along (horizontally scrolling the screen), but then change direction, the background items seem to lag behind (so they appear 'out of sync' with the scrolling screen)
you can watch this occurrence here:
or try the game yourself for a closer look where it is much clearer to see the issue happening.
although it is hard to find a clear pcb recording, it does appear to be a mame bug because this does seem to be an issue which has been quite common/related with system1.c driver
if you did want to watch a pcb recording, here is one below (but it is not very good quality unfortunately)
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems flicky and clones
Attached Files
related to 04577Confirmed  brain, regulus: Sprites vs background alignment is off when scrolling 
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Senior Tester
Feb 25, 2015, 02:52
Hm. I'm going to acknowledge this and hope someone can provide a better quality PCB recording.
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Feb 25, 2015, 19:10
Probably related to 4577.