Boku no Hero Academia Smash!! Is a spin-off gag manga written and illustrated by Hirofumi Neda and is published in Weekly Shonen Jump and the Jump+ App. The manga debuted on November 9th, 2015.
Chapter count includes 94 main chapters and 10 bonus chapters.
5 of the bonus chapters are “Bonus Stuff!!” sets of pages, where each volume contains a set.
Additional Bonus Chapters:
Volume 2: Goofing Off in Shonen Jump!!, Goofing Off in Saikyo Jump!!
Volume 4: Goofing Off in Shonen Jump!!
Volume 5: Goofing Off in Shonen Jump!! (Parts 1 & 2)