What are the visa & residency requirements in Bergen?

"In order to visit Bergen, visitors must obtain a visa from the Norwegian Embassy or Consulate in their home country. The visa application process requires applicants to provide proof of identity, proof of financial means, and a valid passport. Depending on the purpose of the visit, additional documents may be required. In order to apply for residency in Bergen, Norway, applicants must first obtain a residence permit from the Norwegian Directorate of Immigration. The application process requires applicants to provide proof of identity, proof of financial means, and a valid passport. Depending on the purpose of the application, additional documents may be required. Applicants may also be required to attend an interview with the Norwegian Directorate of Immigration," mentioned another expat when asked about moving to Bergen, Norway.