Isa is the name given in Islam to Jesus as an ordinary human being. Muslims do not believe that Jesus was of divine origin, but consider both him and Muhammad to have been men, and to have been the last two Prophets of Islam[?]. Thus "Isa" is not equivalent to "Jesus Christ" as "Christ" implies divinity.
this is a stub - what else do Muslims believe about Isa as a prophet, etc.
... the United States.
However, because the GBA has no region lockout, European games will work fine on a U.S. GBA unit, and apparently, even a player who knows no Japanese ...