You are the Gray circle, use WASD to move. You have Four different colors as shields. But, there are also enemy circles of those colors. In order to defeat the enemies you must use the arrow keys left and right to move your shields to have the enemies touch the same color as them. That will defeat them, but if you don't you lose.
Credits to me for making the game. If you want, comment your score! UPDATES: 2/17/23: Increased shield turning speed. 2/16/23: Added a more random spawn time for enemies. 2/15/23: Game was created.