Answer
Yes, Michael Mifsud has played for clubs outside of Malta. He began his professional career in 2001 with Sliema Wanderers F.C. in Malta, but later went on to play for several clubs in other countries, including Lillestrom SK in Norway, Coventry City F.C. in England, Barnsley F.C. in England, Qormi F.C. in Malta, Valletta F.C. in Malta, Birkirkara F.C. in Malta, and Floriana F.C. in Malta.