Legendary Part Upgrades

[ExceedZero]

To make them rare, we can put them as rewards for Campaign world record holders, that way they are rare and stay rare.

Players may consider this to be unfair, and I can understand that, but we can redefine what we consider to be a world record that is acceptable in order to obtain these, such as glitchless runs.

Do note that world records as they are would remain as world records for the glitchless category.