Legendary Scrap Upgrades

There are basically two new types of Upgrades which can be bought with Legendary Scrap, and have a max level of 20.

More $
This helps you advancing faster in the Barrel Collection because it will give you more $ every second. Max this one first.

More Golden Scrap
This will give you more Golden Scrap for your $, but don't level it too much at first, because its true power comes later on.