Entity

In Strife, The Entity is a mysterious creature from outer space. It resembles the Spectres, but it is larger and green. There is one main entity, assumably the "One God" the Sigil refers to throughout the game. When slain, it splits into four smaller Sub Entities. The main entity can fire all five forms of the Sigil, and the Sub Entities each shoot a single version of the weaker Sigil blasts.

The Entity is found in the last map - the UFO. After player enters the last room, a green pod in the middle of the room will spawn the Entity after a while. After the entity and it's sub entities are destroyed, the game ends and you win. If the player is killed by one of the entities, he can see a cinematic where he sees the doom of Earth.

The main Entity has 2500 Hit Points, and each of the four Sub Entities has 990 Hit Points, totalling 6460 Hit Points for the entire boss fight.