Yonggary was released in South Korea on July 17 , 1999 .
Yonggary was was later re-released with an altered plot and updated special effects on January 20 , 2001 as Yonggary : 2001 Upgrade Edition .
Yonggary was released in South Korea on July 17 , 1999 and was later re-released with an altered plot and updated special effects on January 20 , 2001 as Yonggary : 2001 Upgrade Edition .