The Kelvin Freeze Cannon is a ship part that is capable of freezing the creeper in its tracks; preventing creeper from flowing on affected tiles.

Each shot from a Kelvin Freeze Cannon costs 0.1 energy and stops all creeper flow on all tiles within a radius of 4 (total 49 tiles) for 32 frames (1.06 seconds).

In a narrow enough choke point a single Freeze Cannon can hold indefinitely against even the densest creeper. This pairs extremely well with Rockets to do insane damage to the blocked off creeper.