Half-Shell Heroes: Blast To The Past sees a ... Channeling the spirit of the 80s cartoon, these turtles were deliciously campy, always promising a fun, cheesey adventure rife with catchphrases.

In cartoons, when a turtle is spooked, it retreats into and closes up its shell. While used for comic effect, this imagery is based in fact — although not all turtles are capable of this protective ...