  We prove the existence of hedgehogs for germs of complex analytic
diffeomorphisms of $(\mathbb{C}^{2},0)$ with a semi-neutral fixed point at the
origin, using topological techniques. This approach also provides an
alternative proof of a theorem of P\'erez-Marco on the existence of hedgehogs
for germs of univalent holomorphic maps of $(\mathbb{C},0)$ with a neutral
fixed point.
