No official name has been given for this slasher. It was made by rachjumper.
The Rachjumper slasher looks exactly like rachjumper, the main developer of BtD except it's red.
It throws small singularities out in front of him that seek survivors through walls and ceilings and hits them for 7.5 damage. These orbs slow down the survivor and can even down them through walls. The rate at which the singularities are thrown, especially for the Singularity skin, becomes faster the closer Rachjumper is to the survivors.
You unlock this slasher at rank 250, its Singularity variant at rank 1000, and the Nightfall variant is unobtainable.
His ability is to shoot a larger singularity which stuns anyone nearby. Exploding the singularity causes everyone in it to take 50 damage.
How to Avoid Edit
Due to the nature and range of Rachjumper's projectiles, fleeing can prove quite difficult when already in range. It is best to try to avoid the directions in which you can hear the orb's iconic sound. Using the health perk may change the tides of the game since Rachjumper will not be able to burst you down as easily.