According to the High School DxD Wiki , there are notable differences in how this sequence was adapted:
: Driven to absolute despair after Asia is seemingly killed by Shalba Beelzebub, Issei triggers the Juggernaut Drive , an unstable and terrifyingly powerful form of the Boosted Gear. High School DxD BorN (Dub) Episode 9
: Issei's berserk state easily overpowers Shalba, eventually obliterating him with the Longinus Smasher . According to the High School DxD Wiki ,
: The anime shows Ophis extracting a dark aura (Loki's curse) from Issei, an event that does not occur in the original Light Novel. Watch the intense moment Issei triggers the Juggernaut
Watch the intense moment Issei triggers the Juggernaut Drive in this episode reaction: High School DxD Born (Season 3) Eps 9 Reaction Mashup Boom Reaction YouTube• Apr 4, 2024
: Vali Lucifer arrives and initiates his own Juggernaut Drive to intercept and calm the rampaging Issei.