  We determine the wall divisors on irreducible symplectic orbifolds which are
deformation equivalent to a special type of examples, called Nikulin orbifolds.
The Nikulin orbifolds are obtained as partial resolutions in codimension 2 of a
quotient by a symplectic involution of a Hilbert scheme of 2 points on a K3
surface. This builds on the previous article arXiv:2009.04873 in which the
theory of wall divisors was generalized to orbifold singularities.
