How do I get the chest?

Hint 1 of 7:

Well, you can't quite get the chest, but you can get what is inside.
First, you need a way to light up the chest.  See another question in this
section for more information.

Hint 2 of 7:

The moray eel told you that you needed some muscle to open that chest.  If
you want his exact words, use the lantern (W) and talk to him yourself.

Hint 3 of 7:

Actually, you need 5 muscles from the other screen in this episode.

Hint 4 of 7:

You need the starfish.  If you don't have it, see the appropriate question
in the other section for more help.