Loki

Loki is a boss that can appear in all environments of Chapter 3.

Behavior
Loki teleports to random locations in the room and has the following attacks: A Poky can accompany Loki during the fight, dealing contact damage and blocking Isaac's tears.
 * Shoots 4 projectiles in the four cardinal directions, followed by the four diagonal directions, and then the cardinal directions once again.
 * Spawns a Boom Fly on top of himself. A maximum of 4 Boom Flies can be alive at once.
 * Shoots 8 projectiles in all directions.

Loki can also be accompanied by 4 Stone Grimaces in the corners of the room.

Trivia

 * Loki appeared in the original The Binding of Isaac.
 * Loki has smaller eyes and different horns in his boss portrait.
 * The Poky in the room does not damage Loki's Boom Flies as it did in the original game.
 * Loki's "mark" (The numbers 666 on his forehead) is more noticeable than his appearance in the original game.
 * Lokii is the posthumous version of him.
 * Loki is based on the Norse trickster god of the same name.
 * Edmund McMillen loved Loki's design so much that he made Little Horn.
 * The Horny Boys are a stitched amalgamation of Loki and Hornfel.

Loki