I really enjoy the game play mechanic. At first ready to think it was just another counting game to capture bases, I quickly enjoyed the scrolling and fast puzzling mechanic. It needs some basics introduced still though. I have had two issues with the scoring system so far:
1) I played through level 3 and hit all white capsules on the way to the end, turning them blue, and completed the fill count at the end. But I was given no stars for score and had to replay the level as number 4 did not unlock.
2) I played level 4 and was scored for 1 of 3 stars, unlocking level 5, but I don't know why I was scored so low. I again captured all white paint capsules on my way to the end of the board and stayed back to destroy all black capsules at the end before completing the fill count.