Certification
- Argentina:16
- Australia:MA15+ (TV rating, Season 1-3 DVD)
- Brazil:18
- Brazil:14 (TV rating)
- Brazil:16 (some epiosodes)
- Bulgaria:D
- Canada:18+
- Canada:14A (DVD Rating)
- Canada:14A (Manitoba)
- Canada:PG (Manitoba, part 1)
- Canada:13+ (Quebec)
- China:(Banned)
- Colombia:15
- Denmark:15
- Egypt:PG (self-applied)
- Finland:K-16
- France:16 (DVD rating)
- France:16 (self-applied)
- Germany:16
- Hong Kong:IIB
- India:13 (some episodes)
- India:15+ (some episodes)
- India:UA (video rating)
- Indonesia:16+ (self-applied)
- Ireland:15 (TV rating, DVD rating)
- Italy:VM14 (self-applied)
- Japan:R-15
- Japan:16+ (self-applied)
- Malaysia:U (DVD rating)
- Mexico:C
- Mexico:TV-MA (self-applied)
- New Zealand:R13 (most episodes, Season 1-3 DVD)
- New Zealand:M (some episodes)
- Norway:15 (recommended rating)
- Philippines:R-13
- Philippines:R-16 (Netflix rating)
- Philippines:SPG (TLVH, TV rating)
- Portugal:M/16
- Russia:18+
- Singapore:NC16
- South Korea:18
- Spain:16
- Spain:12 (Netflix, old rating)
- Sweden:15
- Taiwan:12+
- Thailand:18+ (self-applied)
- United Kingdom:15 (TV rating, Season 1-3 DVD)
- United States:TV-MA (DVD rating)
- United States:TV-14 (most episodes, Adult Swim TV rating)
- United States:TV-MA (some episodes, Adult Swim TV rating)
- Vietnam:C16