The Repulsion Cannon is a tool and an upgrade to the Propulsion Cannon that can be crafted at the Modification Station. While the Repulsion Cannon cannot pick up items like the Propulsion Cannon can, it pushes objects away with much more force than the Propulsion Cannon can. The Repulsion Cannon can be used to repel aggressive fauna. It can even repel Reaper Leviathans or Sea Dragon Leviathans if shot at the creature's face. It can also be used to push debris in Wrecks to unblock passageways such as ventilation systems or doors.