There are no passcodes. The Jungle planet is located at X-15 Y-15 (upper left of the solar system).
the jungle planet is in space on astro knights island.
Astro Knights
The phoenix is on the jungle planet
Green.
The Laser Lance.
go to ice or fire planet but fire is the hardest
you fight the robot on jungle planet
You can't get to Jungle planet without a spaceship. You can make a spaceship at the moon.
The planet Poptropica and its moon are at X-56 Y-52. Once you have a new spaceship on the moon, fly up and left to reach the Jungle Planet at X-15 Y-15.
If you follow the coordinates that the Queen gives you, there should be planets at those locations. The knights are on those planets (jungle, ice, and fire) and each has one of the Mystical Weapons for you to use. Jungle Planet : X-15 Y-15 Ice Planet : X-73 Y-83 Fire Planet X-83 Y-20
the knights are... ...one is on the volcano planet ...another is on the ice planet ...and the third id on the jungle planet GOT THAT?!
The Laser Lance is down in the metal flowers on the Jungle Planet. (see related question)