Eight families of flat foldable continuous deformations of the waterbomb base origami tessellation are presented, as well as a couple of closely related tessellations. Several methods of deforming a tessellation that preserve flatness are explained. The waterbomb tessellation is a corrugation, so we briefly discuss what this means, and how a deformation can transform a corrugation crease pattern to a non-corrugated flat folding origami tessellation crease pattern.