Death Effects are a special feature in ABD that consist of a special animation, voice line, or effect played when the user dies. Some of them are only triggered when your foes have a specific ability when others are triggered because of the ability you may hold. Different Death Effects might happen in the game depending on the finishing move that kills an opponent. There are several of these.
K-KONO DIO GAAAAA...!:
The most well-known Death Effect in A Bizarre Day. Not only does this have an animation but also a voiceline too. When dying, the user screams “Kono Dio Gaaaa!”, the exact line DIO screams at the end of part 3 at the verge of his death. This happens when TWGH dies or resets.
"K-Kono Pawã!" -Jotaro Kujo Part 4:
DIO Part 3 injured.
Upon dying, the user will play a crack sound and a small piece of Stardust Crusaders theme will play. This is shared with The World, Vampiric The World, The World (Alternate Universe) and its shiny, and The World (Over Heaven).
"SHHIAAAA!" -Kars Part 2:
Upon dying with Kars, the user will yell "SHHIAAA!" This voiceline was originally on the Blood Suck abillity.
"UOOH." -Enrico Pucci Part 6:
Upon dying with C-Moon, the player will yell "UOOH".
"UOOOHH-UOOOHH-UOOOHH-UOOOHH...." -Jotaro Kujo in HFTF:
"UEAAGH.." -DIO in HFTF:
"B-BAKANA!" -Diavolo Part 5:
Upon dying with King Crimson, King Crimson (Black & White) or Manga King Crimson. The user will say "BAKANA!" (Impossible! in Japanese).
"EAGHH...EAGHH..EAGHH...EAGHH...." -Shadow DIO in HFTF.
Upon dying with Shadow The World the user will yell "EAGHH" 4 times. This comes from the arcade game called JoJo's Bizarre Adventure Heritage For The Future.