Catch one without killing it.
Open your hand and let their delicate wings flap once.
The disturbance of this ripples outward, changing the flow of the eddy currents in the upper atmosphere.
These cause momentary pockets of higher pressure air to form, which act as lenses that deflect incoming cosmic rays, focusing them to strike the drive platter and flip the desired bit in such a way that the armors is instantly added to the Hero's inventory.

Alternatively, you can attempt to set the universal constants at the start such that the universe evolves to contain the save file with the data you want.