Homozygous and hemizygous embryos show a paralytic phenotype. Neuromuscular junctions occupy far less surface of their respective muscles, their branches are reduced in length and boutons appear reduced in number and size in homozygous, hemizygous, shot^HG25/shot^91k and shot^SF20/shot^91k embryos compared to wild-type. Peripheral nerves can form correctly in shot^91k/shot^HG25 embryos. The short SNb-branch has a tendency to stall in these embryos. The ipsilateral local arborisations of the RP3 neuron are almost normal, but the contralateral arborisations of the RP3 neuron are severely reduced and often form swellings or blobs in shot^SF20/shot^91k embryos. shot^91k/shot^HG25 embryos do not show any obvious defects in muscle patterning at stage 16. However, at stage 17, severe detachment of the muscles from the cuticle is seen, although the muscles remain attached to each other. The thick dendrites appear collapsed and the cilia frequently appear detached from the tip of the capsule in shot^SF20/shot^91k scolopidial sensory organs.