Great game! I like it! Really addictive!
Physics are a little bit bugged. Sometimes line's and dot's movements speed increases and all lines and dots just flying away.
I would like to have a button to finish level even if there are unused lines. There exists a few approaches that helps to solve all levels (I have passed 55+ levels) with less lines than it is given. So it feels like levels design should be improved.
Level 55, I think it is unsolvable, because of mass center.
Really cool game!