The Kiss of Blessing Bug is a bug from the game Final Fantasy V.
Using the Chemist's Mix command, the Kiss of Blessing can be made by mixing a Maiden's Kiss with a Holy Water. Doing so gives the Haste, Image, and Berserk status to the target. However, due to the coding, the Berserk effect overrides everything, even boss immunity.
Using this on a boss can cause them to not perform any script used in the battle. Two particularly notable effects are during battles against Exdeath; in the 1 on 1 battle versus Galuf, using it will make the battle unable to end, as Exdeath is actually defeated by a script prompt. Using it on the Exdeath battle in the Dimensional Rift makes him unable to transform into NeoExdeath, allowing you to complete the game without defeating the final boss!
This bug was fixed for the GBA version, however, by mixing a Blitzshot and a Dark Matter to create a Chaos Cannon with the Cannoneer's Combine move, the attack will also skip the Neo Exdeath battle if it is the final blow of Exdeath's first form. An easy way of doing so without having to calculate his remaining HP or having many Dark Matters is to have every character have the Mimic ability and have one character have Combine. Have the character with Combine attack first by using Combine with a Dark Matter and Blitzshot and use every turn after to Mimic this, with no item cost. A drawback is that you cannot heal yourself the entire process without having to use another pair of items. A way around this, however, is to have everyone come into the battle with equipment that induces haste, as Exdeath has a remarkably low agility stat. Template:FFV