Alternative names:
Sekai de Ichiban Tsuyoku Naritai! Specials; Sekai de Ichiban Tsuyoku Naritai! Specials; Wanna Be The Strongest in the World Specials; SekaTsuyo Specials; 世界でいちばん強くなりたい!
Short specials included on the BD/DVD volumes of “Sekai de Ichiban Tsuyoku Naritai!”