Find the mystical weapon and the space knight, and beat the boss monster of each planet.
On the jungle planet, you need to find the Laser Lance.
On the other two planets, the knights provide the weapons.
(see related questions)
(See the related questions for each of the three planets, and for the final battle on Mordred's asteroid.)
There are robot creatures on Astro Knights island, and you use the Mystical Weapons of Arturus to defeat them on the three planets.
When you have all three knights with you, they suggest you look for a giant asteroid, which happens to be at X-11 Y-82 in the Asteroid Belt.
all you get is the island medallion and 100 credits
You can play the three planets (jungle, ice , and fire) an any order. The Jungle Planet is the easiest, followed by Ice, then Fire. You must beat all three to complete the island.
No. You have to beat all the planets, and get all three knights with you, before going to the lair of the Binary Bard (X-11 Y-82). (see related question)
To draw the sword from the crystal stone, you must have defeated all three planets (jungle, ice, and fire) and have all three knights with you. (see the related questions)
The 9th Island was Astro Knights island released in 2009. (see the related question)
As you defeat the three planets (jungle, ice, fire), the knights come along with you. So you have to beat all three planets to get all three knights. When you have them, go to the giant asteroid in the asteroid belt, near X-11 Y-84.
well just beat the stupid thing ingnore her baby birdies
To pull out the Golden Key, you must defeat all three planets (fire, ice, and jungle). (see the related question for the links)
You have to beat the other two planets as well (Jungle and Ice). When you have all three of the knights with you, go in search of the Giant Asteroid in the Asteroid Belt. It should be near X-11 Y-82.