Cool little game, but on level 4 I start running into the issue of not knowing exactly how the game logic works. What causes certain connections to engage or disengage based on certain movements? It doesn't seem logical or consistent. At one point a section suddenly moved diagonally after being let go for seemingly no reason at all.
Seems like different parts have different connection rules, but there's nothing to communicate that to the player (like different graphics for different connections), so it has to be discovered experimentally