Good concept, with really spotty performance.
Now keeping a ball up is cool and all, but the controls are a little awkward, I'd much rather have it auto kick instead, but that's your choice. Now the major problem was that the space in which you would actually hit the ball was often too small to actually get it back up. When you got a "save" it would pretty much make the ball hit the ground anyways. When you hit it up, there was a very likely chance a green balloon would just spawn in anyways and fuck up your day.
While not a terrible concept to get points by hitting balloons, the game play is just straight up lackluster.