At the start if the game, you see the bounded black field with several flower icons moving around. The black area belongs to the flowers; your task is to take this territory away from them. Drag the finger from one edge towards another, separating the piece of the flower land with the yellow line. As soon as you complete, the line turns red. Such hot fence is still can be destroyed by any flower hitting it. After a short cool down time the fence changes color again and becomes permanent. Now most of the flowers bounce from it, and only some still do a limited damage.
As soon as you reach the final level for the first time, you get the player id and will offered an opponent. While this competition real, it is not “real time” - you partner may have played your part long time ago. Competing who will reach the final level faster, you will always see in the progress indicator, which of the players is currently ahead. So this is more like runner competition, where you see the other player progress but all can do is just to try harder. Some levels are more difficult than others and require more time to be completed. Before starting the game, you will see the statistics of the competitor, displayed against your statistics. This allows you to estimate roughly that the opponent is like. Apart statistics and randomly issued user ids, no any other information is shared between the players.
The app needs Internet to fetch the competitor. If the network is down at the end of the game, it will retry at the end of every level during the next game.