Gatebusters
Description: six-foot long centipede-like creatures covered in somewhat offensive-smelling mucus; said mucus is not completely compatible with regular human physiology). Gatebusters seem to feed on the energies that are generated by teleportation or interdimensional travel; the ‘mouths’ filled with razor sharp teeth found on either end of their bodies seems to be merely for defensive purposes. Fortunately, they generally remain passive, only attacking when provoked (which includes keeping them from feeding). Gatebusters are also somewhat impressively armored; military weaponry can shift one, but regular civilian arms will simply just tick the creatures off.