Predator Eddie? A reskin of Final Frontier Eddie, in a jungle/Mayan themed dungeon, with the introduction of the remaining three Women in Uniform Characters?
Taking a closer look at the silhouette, my first thought was The Killer Beast/Prime, with the crystal sticking out of his shoulder.
Attachment 7583
However, allow me to present you with another far more tantalising possibility. :p
Attachment 7584