During the brainstorming process, one thing that all three members agreed upon was to make a game where the goal was to dodge objects coming at the player. Some different ideas were a temple-run type game where the goal was to scroll side to side, whereas the other idea was a geometry dash type game controlled by tapping. The resultant idea was to have one character, controlled by tapping left or right, dodging shapes such as squares and last as long as they can.
Once this was agreed upon, another idea was to have to stay within two lines the entire game without touching the edge of the lines. This idea was eventually scrapped because it would have been very difficult to code the randomly generated lines in the time allotted to code. After this, the team decided to move to just squares falling that the player must dodge.
Here is the project proposal form:
The game description is that a character in the middle of the screen must dodge randomly generated bits (squares) scrolling down towards it. Some of the basic features include side-scrolling L/R, collisions, chunk generator, stats such as acceleration factor, distance traveled/time, and failures, along with a start screen. Some additional features are some artwork in the game, a trail, music, and a slider.