Thank you, much appreciated, and thanks for playing!
On the box flying, yep, Unity rigidbodies & physics! We had all these cool dynamics planned where you could stack the boxes, climb them, scale two simultaneously on the machine, etc. It was going to help us create some interesting puzzles, but rigidbodies and the Unity physics system wouldn't cooperate! So yeah, we tossed a quick fix in where they should only be unconstrained on the Y-axis and come straight back down when that happens, lol.