I know how much you struggled with some aspects of this game and how much time you put into getting it working correctly and I'm so glad that the main concept of the game ended up working the way you wanted it to!
I would have liked a lick of paint on the walls/ floor and maybe a slightly better indicator for ramps (1-way arrows perhaps?). Besides that it was a good idea for a puzzle game and fits the theme of connect perfectly.
Keep it up!