Metal Slug 3 & KOF 2002 in particular, very visible.
Still working, am afraid so. :)
It does work. Maybe u're refering to Work Test Ram screen. U just need to go back to menu & back to the game again.
Other than all bug fix, audio & speed increase, my only wish for a next update is the Dip Switch function. Im not talking about the machine dipswitch. It is a game dip switches which currently can be access it via Uni Bios & Debug Bios (req 2nd player). Dip 1(1-8) & Dip 2(1-8). Eg: switch on Dip 1-3 in KOF99 then u will play Krizalid (boss). :)