There definitely are. Are you interested in the Enigma trait, or own one? If you want to find out if your gecko is an Enigma, post it here and we'll be able to tell you. Enigmas have a very different pattern, that's unusual and very unique to them as a morph. One of the most notable differences is that the "dotting" that non-enigmas has are larger dots, and the enigmas have a tendency to have all-over-the-place speckling and strange large dots.
Enigma spotting usually looks alot more random, other markers are for example, lots have fairly white tails. And there eyes have an orange tint to them.