"2 Sides" put two opposing games together while playing. If there is no difficulty in playing one of them alone, it is mainly to test the agility of your operation, but if two or even the opposite game is played, it is more difficult to play at the same time. You need to take care of both sides at the same time. Not everyone can handle this situation well.
At the beginning of the game, the screen is divided into two parts and two games are started at the same time. One side needs you to avoid bullets flying around, and the other side needs to pick up items in the game to sustain life. Any end will lead to the end of the game.
Because this diametrically opposite gameplay is happening at the same time, sometimes it will make you frantic. Geography does not know which side to avoid and which side to pick up. This requires your focus and better familiar operation. It is very difficult. The vast majority of people cant stay in the game for too long. You can try it out and log in to GameCenter to challenge global players.