small problem: you'll be able to hide without the closet, but to fix that you'll have to make Rush wide, but if you do that he'll kill people inside the closet too, but seat parts might be patched to make you not invincible by Roblox.
if you need sound, buy advanced tools first, select the music parts (its impossible to make it damage or moving), the rush sound id is 530591527, lastly make it a loop and make the playback speed to 0.06
Just make a invis button in the ground at the start of the room (also make rush button activated) and then he’ll rush through the room all the way to door 100 and then when the button gets pressed again he comes back.
How to make lights flicker with one part: You need an moving block and put light on it but the light is black and make the speed to 0.2 and there you'll have it
My rush is kinda better, because, if you choose the closet with jack in it there will be rush jumpscare and guiding light. Also, there is a light flicker noise.