From TRLE Wiki
The mutant uses the MUTANT, AHMET_MIP and BUBBLES slots. The mutant cannot be killed, and he also will not move. When Lara is close, he will shoot fire wraiths at her. These wraiths will chase Lara, but they explode on contact with a wall. He will also fire a locust swarm at Lara, which will chase Lara and attack her for some time.
The original mutant enemy is very large and needs a lot of room to move. He is around 21 clicks high when standing up, and he needs a 5 block width area to shake his head. When the mutant has his head lowered, his legs will be 3 clicks above the ground, so you need to raise the floor in front of him 3 clicks. The image on the left shows the layout of the room. The blocks with 3 written in it are the blocks that should be 3 clicks high. The block that is marked red contains the mutant enemy, he should be facing the 3-click high blocks.
