Hatches are mechanical gates used for inserting Bydo into a battlefield, usually as a response to those pesky Space Corps pilots and their R-craft who always come in and wreck the place. Hatches are always attached to a non-organic wall and are common fixtures in mechanical fortresses. They are somewhat durable, but can be quickly destroyed with concentrated weapons fire; a Wave Cannon shot will take it out in one blast.
Hatches are used here to deploy Guntaks.
A gate for small flying enemies. If the Hatch is destroyed, the enemies cannot get out.