I remember playing the demo for this game a long time ago, I had no idea it actually came out until much later in life. As a fan, and developer of other various physics based AND TD things I love this game. Both way back then and now! I can tell many aspects are a labor of love, nuanced controls, AI behaviours, line-of-sights, and I really like the offensive nature of the game, more than just a defense, with many regions to travel between carrying your blocks along with you.
Comparatively I do enjoy the wacky physics this game exhibits as it adds to the charm of chaos that the enemies also have. meaning its not just a game about stats as some times the fight might not go you way.
If I HAD to nitpick somewhere, the 'one-joint' nature of some of the builds does end up limiting my creative design, or perhaps I am missing something (I'll update this if I figure that one out)
Very neat idea. I love things like this