Several of my young playtesters commented that they did not like the original Shark Bot torso, that it didn't look "realistic". This redesign is made to look more like an exoskeleton that a shark can wear, and add arms/legs/thrusters etc. Much more realistic. You can use arms and legs from the previous shark bot, but you should use the head and tail from this Thing, it has connectors that will work better. Of course, you can use any Tinkerplay parts or limbs.The exoskeleton was designed in Tinkercad, using the new Tinkerplay connectors that are now integrated. The head and tail were refitted with a new vertical socket using Tinkercad as well.