Is this free shipping worldwide?
Or just to the US.
Afraid it's just the continental US. From their faq:
QUOTEÂ Â *Â *If you qualify for FREE Budget Shipping but your order also contains one or more ineligible items, you’ll be charged shipping fees for those ineligible items.
  * FREE Budget Shipping excludes certain oversized and/or overweight items, third-party Marketplace items, and those products that do not include these icons: Free Shipping or Free Shipping when requirements are met
 * FREE Budget Shipping is not available for International orders or shipments to Alaska and Hawaii.
  * Please note: Some special product, order, or handling fees may still apply. FREE Budget Shipping does not apply to products with surcharges.
  * You will not receive FREE Budget Shipping on your order for items identified by this truck icon Free Shipping if (a) any eligible Game store products are cancelled, bringing your total of eligible Game store products below $75, or (b) any eligible Sports store products are cancelled, bringing your total of eligible Sports store products below $75, or  any eligible Book, Music, DVD, and Video store products are cancelled, bringing your total of eligible Book, Music, DVD, and Video store products below $25.
  * Eligible Game store products must be combined with other eligible Game store products to meet the $75 requirement.
  * Eligible Book, Music, DVD, and Video store products must be combined with other eligible Book, Music, DVD, and Video store products to meet the $25 requirement.
  * Book store orders containing 10 or more copies of an item are not eligible for FREE Budget Shipping.
  * Eligible Sports store products must be combined with other eligible Sports store products to meet the $75 requirement.
  * We reserve the right to end or change this free shipping offer at any time.