Type: Special
Plot Summary: Short specials included on the BD/DVD volumes of "Sekai de Ichiban Tsuyoku Naritai!"
Genre: Action,Ecchi,Sports
Released: 2013
Status: Completed
Other name: 世界でいちばん強くなりたい!
Episode 5
Episode 6
Episode 1
Episode 59
Episode 128
Episode 107
Episode 7