Boss Debilitation

Also known as Boss Debilitation Mechanism

First introduced in Summer 2015 Event, this mechanism allows the player's fleet to increase the damage dealt to the boss by fulfilling specific requirements on the event map. The exact mechanism varies depending on the map, but it had been present for Extra Operation maps from Summer 2015 onwards with the exception of Winter 2016 Event.

This mechanic resets daily, at either 0000 or 0500 JST depending on the event. Without using this mechanic, the boss will ultimately be harder to defeat. The mechanism also appears to persist even when difficulty settings are changed.

In Summer 2015 Event, the only map that used this mechanic was E-7. Initial speculation and testing indicated that the debilitation nodes were X and Y. However, a source that appeared after the event indicated that node C was also another debilitation node. It was also revealed that the debilitation from node C was triggered by the destruction of Wa-class transport enemies. It is not clear if any Wa-classes or only those from E-7-C were valid. In this event, this mechanic increased all ships' critical damage multipliers and possibly critical hit rates at the boss node. This mechanic reset at 0000 JST daily. Other than boss node (node Z) the debilitation nodes are shown.

The Fall 2015 Event version of the mechanic involved the Submarine Princess and the Destroyer Water Demon, requiring the player to defeat certain enemies on the map to weaken them. Unlike the previous event which lacked any visible indicators, enemy bosses now have separate CGs and lines to indicate their weakened version.


 * The Fall 2015 Event E-5 boss, Destroyer Water Demon could be debilitated by sinking at least 30 PT Imp Packs during the TP-Bar Stage, or 15 PT Imp Pack during Boss HP Bar Stage. While the debilitation was in effect, the Destroyer Water Demon would lose her helmet.