Zaxxon the Standalone จัดขึ้นในปีใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
In what year is Zaxxon the Standalone?It is not neccessary to use all the tables.
 table_66309:  "Year" [ text]  "Arcade" [ text]  "Standalone" [ text]  "Console" [ text]  "Computer" [ text] 
SELECT "Year" FROM table_66309 WHERE "Standalone" = 'zaxxon'