Deal with a grease and make order. Your task is to put away coloured greases so nothing bad happens. If you wait for the right moment before the smaller liquid goes into the bigger you get rid of them faster but you get more points.
With Gluey 2 you will abreact really well because your concentration will be taken to grease which, after a fall, will pour into bigger sizes. In every level, you get different task. In one you must prevent the grease getting into the water. The next is about letting explode things and eliminate their numbers. Sometimes, you just have to click the greases and put them away.