Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08544 Speed Minor Always Jan 7, 2023, 04:41 Jan 7, 2023, 12:44
Tester danylopez123 View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10/11 (64-bit)
Status [?] Confirmed Driver
Version 0.251 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08544: polystar: The game haves many slowdowns
Description I don't think there has been a video about Tobe! Polystars recorded using MAME because it uses WAAAY too much CPU.

I've tried to record the game as Uncompressed AVI to then take a look at the result, i've recorded both the Opening and Demo but i had to be patient, in MAME my game was running like between 20% and 30% discounting the parts that freezes a bit MAME.

I've compared this to a video which it was recorded from the actual hardware and.. it seems that in the Opening and in the Demo, from MAME, it has many parts that slows down. (But then almost at the end of the demo, in MAME kinda decided to speed up going ahead from the actual hardware)
So i might assume that for the gameplay, it's going to have many slowdowns as well.

Here's the recording i've made with the video of the actual hardware:
Left Screen = MAME 0.251
Right Screen = Actual Hardware Recording

(Credits to pitsunami from Youtube for the recordings of the actual hardware, links for the used videos are in the description of my uploaded video)
Steps To Reproduce
Additional Information
Github Commit
Flags Verified with Original, Noted in Source
Regression Version
Affected Sets / Systems polystar
Attached Files
There are no relationship linked to this issue.
User avatar
Jan 7, 2023, 07:39
This is noted in the source: * Fix incorrect speed in Tobe! Polystars
The game is also flagged as MACHINE_IMPERFECT_TIMING, which should show up when you launch it.
So probably this report shouldn't have been created according to MAME Testers rules.
User avatar
Jan 7, 2023, 12:44
This seems valid it in the fact that some side-by-side speed comparisons are provided using supposedly original footage. The game itself really all that playable in a normal setting on your average machine, however, and I wonder the reasoning of taking the not working flag off from it.. must be able to be finished in testing.