Nice quad-post, burnbotics.
To the actual showcaser: Pretty good, how long have you been building? I would suggest adding some armor on the sides if you have the room for some mounts on the inside. If not, you could leapfrog it on the outside, at the risk of all of it falling off when the parent is hit. Also, unless you want to make a more mobile spinner, try getting rid of the extra pair of drive motors and beefing up your spinner. Mabye get rid of some batteries too, a single orange should suffice for that particular config.