This was a blast to mess around with! Accomplishing the goals on the other hand, was a bit tedious and confusing. To mess around with, the heavy gravity and dense particles flying around made for a crazy cool experience, as I never really knew where I was going to end up after taking a shot. However, that along with the fact that there is no indication of where the goal is and the camera follow doesn't show me where my ball is when it's moving fast, makes for accomplishing tasks difficult. The mood of the game was awesome though! Really engaged me, especially on the earlier levels where the goal was still easy to find :D
tl;dr: I love it as a sandbox! The aesthetics were through the roof. Played it for a lot longer than I thought I would.