  We investigate the properties of the excited spectra of the even-even
isotopes of krypton using a Generalised Bohr Hamiltonian with three different
Skyrme functionals. In particular, we investigate the evolution of the
low-lying $2^{+}_{1}$ and $4^{+}_{1}$ states and their associated
electromagnetic transitions. The model reproduces quite nicely the energy
trends apart from ${}^{88}$Kr, where none of the interactions used here are
able to grasp a sudden change in the energy spectrum. Additionally, we explore
the neutron deficient region ${}^{72-76}$Kr which is a proposed region for
shape coexistence. We observe that the model can reproduce the structure of the
experimental spectrum of ${}^{72}$Kr exceedingly well.
