After killing the alien demons inside the flying saucer, the three of them began to retreat.
Leon looked at the facilities inside the flying saucer, he wished to move the flying saucer to his home.
They left a lot of things and the American government would take advantage of them.
He used the metal life to transform many seemingly valuable metal devices into metal creatures and sent them to his own eternal space.
When the metal creatures returned to normal, they would return to their original state.
He might not be able to study these precious instruments.
But if the government wanted to study them, they would need to buy them from him. After all, it was Leon who had solved the problem. All these were his spoils.
As for the price of these things, it depended on Leon's mood.
It all depended on his own mood whether he offered an exorbitant price or a relatively generous price.