What would happen if you sneeze? I want matrix style interface (wireless if possible) where I can put my arm in the air for hours without felling pain or my bo

What would happen if you sneeze? I want matrix style interface (wireless if possible) where I can put my arm in the air for hours without felling pain or my body could stretch or morph in the same way the robot can (no need to stick to humanoid robots) and I want to feel like my eyes are really firing up laser beam while I'm doing the war crimes stuff.