Draw Happy Devil : Puzzle Game for android from New Story Inc.
If you are looking for easy-to-play puzzle games, you should definitely check out this one.
The gameplay is simple: You need to use your line to connect the different parts of the drawing, making sure it’s not overlapping or cutting through an object. You can also use other shapes, such as rectangles, circles, and arrows, to connect different parts of the drawing.
After you’re done, you can save your drawing and open up another page to work on. If you play, you will likely find that the gameplay is simple and easy to pick up.