The game is about a crocodile named Little Naughty who lives under the city. He wants to live the same life as a human being, and he loves cleanliness so much that he wants to take a hot bath every day when he comes home after working and playing, but things are not always as they should be. Cranky is not accustomed to Little Naughty's habit of loving cleanliness and considers it a kind of eccentricity, so he often bullies it and conspires with other crocodiles to destroy Little Naughty's water supply so that Little Naughty cannot take a bath. Therefore, the player's goal in the game is to help Little Naughty avoid poisonous water, algae and various traps, and then lead the water to his bathtub and try to get ducks.

Of course players can also experience three other unique stories featuring Ally, Big Naughty and Mystery Duck, including over 500 exciting puzzles!

The game provides players with many levels, each challenging, such as the first level, players are relatively simple, players need to tap the screen with their fingers through the hand slide to chisel away the dirt blocking the flow of water, and get the duckling, so that the water successfully flow into the little naughty bathtub. When the player passes the corresponding level, the system will be from the player clearance time, the number of ducks collected, as well as the number of water to reward, and then you can start the next level.