I want to make a endless game like flappy bird. Please make a game design document for it! Here are my some highlight features that I am planning to have in the game! also you can add the other things if it suits the game. Game Name : - Flap Wave Some functionalities :- -the game should not have end. -it should be in 2d. -if we are playing on phone or tablet we have to tap the screen to jump above the obstacles. -if we are playing on laptop or PC or computer then we have to press the space key on the key board to jump above the obstacles. -here are some obstacle's name - 1) Chairs 2) Tables 3) Side Tables