Found a bug on a#3, if you put the line in the correct spot you can hit the balls through the top right corner of the static block and the balls get stuck in side of it and roll around and beep and boop in it.
If you've not played the previous game this is how it works. Through trial and error, you click through all possible combinations of a maximimum of two items. You will have more fun collating paper or manually sorting a pool of coins.
Two problems I found that make the game difficult to play. The camera is far too close to the character, and when you walk over the edge of something the camera keeps pointing in the same direction so you always walk over the edge and then end up looking up.