CREATE TABLE table_15277 ("Japanese Title" TEXT, "Developer" TEXT, "Publisher" TEXT, "Genre" TEXT, "Console ( s ) " TEXT, "Initial Release Date" TEXT)

When was Ranma : netsuretsu kakutouhen first release by Banpresto?
SELECT "Initial Release Date" FROM table_15277 WHERE "Publisher" = 'banpresto' AND "Japanese Title" = 'ranma ½: netsuretsu kakutouhen'
SELECT "Initial Release Date" FROM "table_15277" WHERE "Japanese Title" = 'ranma ½: netsuretsu kakutouhen' AND "Publisher" = 'banpresto'