Mini Mutants
In 1994, Playmates, in an attempt capitalize on toy lines like Mighty Max and Polly Pocket, shrunk the Turtles down to an equally small size in a sub-line simply named "Mini Mutants". These were "Turtle Transport Combos" which contained one figure and two vehicles. "Bodacious Battlesets" which were four playsets which could connect via bridges/platforms; these included one figure. "Turtle Top Playsets" were a characters head which would open into a double decker playset; these included three figures. Slimmer "Carry Along Playsets" took the shape of Raph's sai, Leo's katana, and the Turtle Communicator; these came with three figures. And finally, "Turtle in a Turtle" consisted of four playsets that were figures of the four turtles about 6 inches taller than the normal figure; their heads, stomachs, and shells opened into the playsets. Each had themed removable armor as well; two figures were included with each.
Read more about this topic: Teenage Mutant Ninja Turtles Action Figures, Themes and Incarnations