It looks like you guys already know of the bugs present in the game. I have another one: the purple buttons switch state whenever a robot enters/exits its trigger, however this should not happen when there's already a robot on the button. I discovered this bug in level 7 and it seems like this is only a problem in that level.
I managed to finish all of the levels and there were a lot of well designed puzzles. However, the bugs are a big issue and really decrease my enjoyment of the game. Something else I found, was that the artstyle is kind of inconsistent. Also, the wall bouncing is quite difficult; perhaps there can be a line showing what the trajectory will be.