If the Mangler Squigs' move would bring them into contact with another unit, then they move through rather than stopping. If the Mangler Squigs' move would end within a unit, then they automatically bounce through it – place the Mangler Squigs 1" beyond the unit, in the direction in which they were moving.
When Mangler Squigs move through a unit (friend or foe) they inflict 2D6 S 6 hits.