NePo has only just started learning Phaser, and this is the first game produced. A variation on the well known card game TriPeaks, or classic Solitaire. Where the aim is to clear three peaks before you run out of moves, by placing higher and lower cards than the main one displayed.
There is an interesting blog post that details the issues the developer had to work through too. Most of the issues are easily solved, so this goes to show where we need to focus on the documentation and examples.