According to the document, turn on the lights.

The pictures on the west wall tell you which switches to flip.

Drop the ladder.

You need a paint can, a paint brush, and a ladder on the floor to access the ceiling. Then just paint it.

Animals that normally wake you up.

Take a look at what's written on the wall. See anything in the room that has anything in common with it?

The ladder isn't high enough to fall from. But you will see something from the ladder.

One of them was visible when the game ended. Maybe you should look there.

The passcode to the cryptex is a five letter word. If the names of the animals don't give you a hint, you may need to google.

The song's name is important. The lyrics are not important, but the names of the cats are important.

The number in the song indicates what to look at when you look at the names of the cats in order.

Yes.

There are three familiar objects and three unfamiliar objects.

You may need to use paper for this. And a pencil. Writing things down will help.

If you put the familiar objects into a list, why a list? Why not put them all in a row?

Then remove that which shouldn't be in the room.

No. I personally don't enjoy anagrams. There is a method to get the correct word and order. Remember the part to start from the right.