Minecraft Horror Escape?

Do you have any ideas what I could add to my horror escape?

You can place a Scarebomb so / tp @ [name = armor_stand] @p

I've already done that so tp @e [name = armor_stand] @a

Or can you make a plug-in if you know the Java language…

But I don't know them and I don't want to make any plugins. Redstone or Command Block only