  We investigate the behaviour of a cluster of young massive star clusters
(hereafter super-cluster) in the tidal field of a host galaxy with a
high-resolution particle-mesh code, Superbox. Specifically we want to establish
if and how such super star-clusters merge and carry out a detailed study of the
resulting merger-object. This merger-object shows either the properties of a
compact spherical object or the elongated (`fluffy') shape of dSph-galaxies
depending on the initial concentration of the super-cluster.
