Samurai Shodown unplayble demo on MSX+V9990

I'm not home, but tomorrow night I'll test it on my powergraph and upload it to youtube
msx2 and powergraph ?
turboR and powergraph ?

I have tried the rom in turboR and msx2+ as ascii16, and it doesn't show what is in the video/webmsx.
videos attached.
turboR
msx2+ sony

@erpirao Can you please try this ROM (https://webmsx.org/?PRESETS=V9990&ROM=https://github.com/aoi...) ? It was tested working on a Powergraph Light.

@albs_br So far, I've never come across anything that works on OpenMSX/WebMSX but not on a real V9990 cartridge.
From the video, the program seems to crash (not just a graphics corruption) so if I were to look for a lead, I would look at the status or interrupt register handling.

So the bug on the video don't come from the albs_br's tech demo code?

I did a test on real hardwar as well ( V9990 Power Graph Light + TurboR FS-A1ST), both give problems:
Samurai Showdown
MSXgl

I did not test these yet on my Sony MSX 2+.

As a cross-check, just to be sure, also tried Ghost'n Goblins V9990 on this setup and that works fine.