It is the very famous Flappy Bird game made using Processing which is an open-source graphical library and integrated development environment (IDE) and it uses Java as a language. As I have coded the game on my phone, I have made it to be playable on mobile devices only by keeping the orientation as portrait. There are numerous features that one can add and make the game amazing by using some creativity and logic.
I made this game for Gaming Booster 2020 hosted by GirlScript Ireland in August and this was selected as the best game and they have also posted a YouTube video for the same.
You are welcome to contribute to this project and you don't need to have an expertise on coding. Go through this Contribution guideline before proceeding