You are controlling Barney. Chocolates are falling down, and you need to catch and insert them into the barrels. When you miss a chocolate, it is eaten by Coco. 3 misses and the game ends. There are power-ups, which will give you some additional bonuses like clearing a miss, boosting speed etc.
http://www.rapidturtlegames.com/barneyinchocoland_index.htm
