Multidimensional Baby

Multidimensional Baby is a passive item added in the Binding of Isaac: Afterbirth expansion.

Effects

 * Spawns a familiar that follows the path that Isaac's path with a 2.5 second delay.
 * When a friendly tear passes through Multidimensional Baby, the tear splits into two parallel tears, gains speed, becomes spectral, and also gains a visual black and white flashing effect.

Synergies

 * 20/20: If the double tears from 20/20 are shot through the baby, they will each be duplicated for a total of four tears.
 * Anti-Gravity: Stationary duplicated tears will not launch with the rest of the tears when you stop shooting, and will stay stationary. Moving tears will be duplicated normally.
 * Brimstone: If a brimstone laser is shot through the baby, it will double the laser.
 * Azazel's short-ranged brimstone attack will also be "fired again" from the baby, increasing the range.
 * Mutant Spider: If the quadruple tears from Mutant Spider are shot through the baby, they will be multiplied for a total of 8 tears.
 * Obsessed Fan: Follows Isaac at the same delayed rate, in a way giving Multidimensional Baby contact damage.
 * Papa Fly: Papa Fly's path of movement is identical to Multidimensional Baby's, so the fly's tears will always be doubled.
 * Rubber Cement: Rubber Cement will make tears pass through Multidimensional Baby more frequently, especially with a high rate of fire.
 * Technology: When the laser passes through Multidimensional Baby, it doubles the laser.
 * Tiny Planet: Tears stop revolving around the player after passing through Multidimensional Baby and shoot straight in the direction they were traveling.

Interactions

 * BFFS!: The baby is larger, but tears shot through it will not deal more damage.
 * Dr. Fetus: No effect.
 * Mom's Knife: No effect.
 * Tech X: No effect.

Trivia

 * The way the tear splits resembles stimulated light emission.

Seeds
3BGY TK8J (treasure room adjacent to spawn) (both modes)