The Scroll of the Ages

Lloyd summons the spirit of the golden dragon when he became Supreme Master of Spinjitzu.

However, the true origin of the golden dragon and also part of its future is told on a very old scroll, which you can only find in this museum, in the room reserved for legends of the past and future.

On the scroll we can see the ultimate weapon that allows the ninja to gain wings and tail to fight like a true golden dragon.