CREATE TABLE table_18012 ("Release" TEXT, "Title" TEXT, "Windows" TEXT, "5th Gen" TEXT, "6th Gen" TEXT, "Handheld" TEXT)

Was the release on April 8 available on Windows?
SELECT "Windows" FROM table_18012 WHERE "Release" = 'April 8'
SELECT "Windows" FROM "table_18012" WHERE "Release" = 'April 8'