I need to find the font for the "streetpass" and "mii plaza" texts in this pic. Thank you!!

Myriad Pro  Sugerido por DominionSpy 
Continuum Bold  Sugerido por waichingliu81 

mii - continuum bold

Not quite, the lettering doesn't have the same curves.

I realise this is a bit out of date, but the closest font I've found for this is:

StreetPass - Myriad Pro Bold Italic
Mii - Continuum Bold
PLAZA - Myriad Pro Bold

See the preview section of the link.