Dark Marker

**Dark Marker** is a gun. Uncharged, the gun fires black projectiles with no special properties. The gun can be charged to fire a red projectile and a blue projectile at the cost of ammo left in a mag, both of which curve and meet at one point. If the two projectiles meet, they will create a large explosion and trigger a blank effect. Both the red and blue projectiles pierce through enemies.

## Notes

* **Antichamber** - If the player has Antibody, Dark Marker's uncharged shots alternate between firing red and blue charged shots without consuming additional ammo. The shots travel straight and become slow-moving orbs after a short period of time, which can deal multiple instances of damage. If any red and blue shots/orbs touch, the blank effect is activated. The charged shot remains unchanged, and will still consume 10 ammo.
	+ If the player has Backup Gun and the  **Antichamber** synergy, then shots fired forward will always be blue and shots fired backward will always be red.
	+ If a player with the  **Antichamber** synergy walks backward and forward in place while shooting normally, it's possible to make the slow-moving orbs collide frequently, causing a large number of blank effects.
	+ The  **Antichamber** synergy works well with Double Vision, as the weapon will always fire one red projectile and one blue projectile at the same time while these projectiles are close to each other, which can cause the blank effect and subsequent explosion to trigger rapidly. If the player also has Ice Cube on top of this, the large burst of damage from the rapid explosions from firing Dark Marker while Double Vision is active can recharge Double Vision almost immediately, allowing the player to almost always have the ability to double their damage output while using Dark Marker.
	+ In a similar vein, Scattershot and Helix Bullets make it easier to utilize the blank effect due to putting more bullets on screen. Additionally, Helix Bullets make it particularly easy due to it essentially mirroring the behavior of a charged shot and guaranteeing the projectiles will meet.
	+ Additionally, if the player has Remote Bullets alongside the  **Antichamber** synergy, it becomes much easier to have the uncharged red and blue shots collide as the player can manually move them in to one another by rapidly pressing the fire button twice while keeping the cursor in the same location.
* If one wishes to be conservative with their ammo, it is best to empty the magazine using normal shots and then use the charged shot. The charged shot will always empty the current magazine, so using it with one shot left in the magazine is the most efficient use of ammo.
* The blank effect will not reveal secret rooms.
* The blank effect gains bonuses from Ammolets.
* The blank effect instantly ignites flammable obstacles (such as cobwebs and oil) and destroys obstacles on the ground in a large radius.
* Unlike most charged weapons, Dark Marker first fires an uncharged shot when the fire button is pressed. This can be avoided by firing while facing against a wall.
* The uncharged shot fired when the player begins charging the weapon does not anger Bello.
* If the player has the  **Friend to Gun and Bullet** synergy, the secondary Dark Marker will continuously fire charged shots that trigger the blank effect.
* Having items such as Chaos Bullets is a negative for this weapon, as the red and blue projectiles often have different bullet speeds.
* If the bullets of a charged shot fail to meet (due to an NPC's force field, for example), they will become orbs that pierce and deal multiple instances of damage, trailing off until hitting a wall.
* The charged shot of this weapon can damage Cannonbalrog during his teleporting attack.

## Trivia

* The mechanic of the charged shot is a reference to matter-antimatter annihilation, whereby 100% of the mass of the matter and antimatter are converted into energy.
	+ Instead of strong and weak particles, in reality the strong force and weak force are two of the four fundamental forces, alongside gravity and electromagnetic force.
* The  **Antichamber** synergy might also be a reference to the game Antichamber.
* The phrase "Big Bang" and the way Dark Marker's bullets react might be a reference to the Big Bang, the explosion that occurred in space which formed the universe.

## Gallery

* Dark Marker with empty magazine waiting to be reloaded.