Flow

Flow is a powerful energy source found on Source. Flow is used to power the Nest, as well as Yu and Kay's boots. It is also discovered to be able to clear Rust, a corruptive substance that covers Source. Flow threads can be ridden with the anti-grav boots to difficult to reach areas, and Flow bridges (Many flow-threads bound together) can be used to travel between islets. Flow can also be used to fight various enemies as well as charged to open doors and stun enemies when necessary.