This is what the room should be if you make one. It doesn't have to be like a basic and boring and stuff but it has to be all in one sprite like this, you can click see inside. The original thing is https://scratch.mit.edu/projects/1309991734/
It can have code but not too much. With the lamp that can turn off and on it's just a clone the switches to costume 2 so this is just one sprite.