I have seen more than once how speedruners who lag behind the team do (incomprehensible to me) actions, and remain in a closed room WITHOUT Mr. Loope. As a result, the room simply disappears, Mr. Loope teleports the person to the team without causing any damage. I think it's obvious that I want to know how to do this.

its fella tech. Its fixed now, you cant do this in current version of pressure.

@lp_sty actually it is called jit tech and it involves you to use a specific magic. If you suck and cant do it then accept your fate kid