In The Smurfs Ocean Cleanup, one of the Smurfs has set out on a boat to clean the waters around a tropical island, and he needs your help. It is a relaxed fishing-style game with a friendly message: the junk floating in the sea is worth pulling out, and some of it is worth more than you would expect.
Drop the line into the water and hook the items drifting below. Every piece you bring up earns coins. Treasure is hidden deeper down, and it is worth far more than everyday rubbish, so it pays to reach the bottom when you can. Spend your coins on upgrades between rounds. A stronger Smurf can haul up heavier objects, and a longer line lets you reach the deeper treasure. The more you upgrade, the cleaner the ocean gets and the faster your coins pile up.