You have to play the correct notes. Like, the first one is blue so play blue and so on.
you get a pomagranet from the garden of the sphinx and place it on Hade's alter at his palace. The alter is by the door. The door will then open.
Place it on the offering stand in Hades throne room.
In the museum on Poseidon's statue there is a star fish and offer it to him on the offering table by the door.
You play the colors on the door in order with the recorder ( or what ever it is ). If you don't have the recorder (what ever it is again) then get it. It's at the right side in the building on the left side of Hadeis place and click on the statue holding the recorder (or what ever it is).
Once you have the reed go to the door get out the reed and play the colors that are on the reed in the order of the colors on the door ( blue, blue, green, yellow, yellow, red, blue, green)
get the five sacred items, give them to Zeus, go to Hercules, and use the mirror to get there.
you go to the star kingdom and put it on the pole thing so that they can open the door for you
you can not get the cat away from the door on poptropica you have to jump over it
no. you cannot make it. instead a lady gives it to you once you pass poseidon's door by giving him the starfish, you go in and pass a test a lady gives to you, then she gives you the transporter.
To get to hades castle: Go all the way to the end of the island and there is his castle. There will be an offering table. Find pomegranates and put them on the table. A door will open. Take it from there.
They DON'T open both. The pomegranates only open Hades' door to the underworld put them on his alter in Mythology Island. To open Poseidon's door to his his awesome beach, you need the starfish off of his statue in the museum.
try using the card rowely gave you, if it does not work then you probably cant open it.