No button is mapped to "0" in the INTV core on the Famicom Network Controller

[spspspspspsp]

Since "0" was remapped to ".", no button is mapped to 0 in the INTV core on the Famicom Network Controller.

When playing Ultimate Pong, for example, you are unable to leave the options menu because there is no key for "0".

Can "0" please be mapped to the "End" button on this controller?

[spspspspspsp]

I converted the Hand Controller Diagnostic ROM earlier and looked at the Famicom Network Controller. I confirmed that no button is mapped to "0".

Also, the "." button is mapped to Left + Left fire + 0 + Enter: