By now, we have worked on every essential aspect that is provided by Sprite Kit for game development. We have even integrated a scoring system, sound, and running animation to enhance the gaming experience. However, there is still room for further improvement; you can try out various effects and features, or just enhance the current features and make your game more exciting. Here are some ideas that you can, yourself, give a shot:
Obstacles: Currently, we have only two types of obstacles; you can work on adding more obstacles in the game and make the gameplay a little more exciting.
Levels: Currently, we have just three levels in the game, but you can work on adding more levels and make the game more challenging as the levels progress.
Extra life: If the player hits an obstacle, the player dies; you can work on giving an extra life to the player, and hence, increase the gameplay time too.
Bonus points: One more idea could be to add some bonus points...