How do you open the Binary Bard's door on Astro Knights Island?

Answer 1

You can't get in through the library again. You have to come in through the tunnel that Mordred dug when he escaped (see the journal). The tunnel leads to his secret underground lab. To reach the cell by the back way, you do this :

1. Take the cheese to the Princess's Maid's room (1st floor of the castle).
2. Get the secret message and feed the mouse.
3. Take the secret message to the mill and talk to the girl in the loft. She will give you a secret password (cosmic symbols).
4. Go back to the fountain and open the secret passage : press the three symbols and the center sun.
5. Get the key to the secret laboratory.
6. Go to the hay bales on the farm and separate them.
7. Unlock the opening.
8. Go inside and wake up Merlin the owl.
9. Go outside and feed the mouse to the owl.
10. Push through the dirt wall. (Keep pushing, this was tricky!)
11. Enter the cell through the back way. (the switch you threw opened it)
12. Click Merlin, then the green fuel rod, and he will fly out and get it for you

Answer 2

The Binary Bard is revealed as Mordred. Enter his castle by pressing all four panels in the 2nd row, the middle two panels in the 3rd row, and all four panels in the 4th row.

As Merlin the Owl, avoid the flying projectiles and swords, and grab the bombs dropped from the robot suit. When they flash red, drop them on the suit, near the green orb and Mordred's cockpit. Do this twice and Merlin is zapped. As your character, avoid the blasts and duck to avoid the swords. Jump up on the robot and then to the pedestal with the Princess. Then jump to each of the two chandeliers. Mordred will zap them and they will crash onto the suit. After one on each side, he is defeated and is knocked out by the released Princess.

(see related question for details)

Answer 3

To beat the castle door, simply press these 10 of the panels exactly once each :

• All four panels in the 2nd row
• The middle two panels in the 3rd row
• All four panels in the 4th row

Numerically, this is panels 5, 6, 7, 8, 10, 11, 13, 14, 15, and 16 in any order.

Answer 4

You can't because the Golden Key is no longer there to open the portal.

Answer 5

There are 5 rows of 4 cards. Press each of the cards in row 2 once, then the two MIDDLE cards of row 3, then each card in row 4.