For me. San Francisco Rush 2049 does not works.
It crash after the Dreamcast Logo.
But in the spreadsheet it was marked as working.
I tried with GDI and CHD format and with NTSC AND PAL version.
I had the issue then I tried a different BIO...
Emulator seems to map controls now and San Fransisco Rush 2049 seems to be running as perfect as I can tell at the moment if you want to add that to your list.
This happens rarely for me whenever it happens I hold the shield button down until the shield powers off (I think it takes more than 10 seconds).
After booting usually controls are fine again.
Well I actually tried this and works well if you have a flat enough surface. The shield is luckily very heavy and has a good rubbery base, i just have a velcro strap i put over it which lightly holds it down from sliding on turns and sharp stops ...