The World’s Hardest Game

Game description:

Are you strong enough to get through this world's hardest game? Playing this game will improve your reaction time, thinking speed, stamina, and attention span. The idea of the game is simple, but not everyone can pass all thirty levels. Blue circles are obstacles that move by a certain trajectory. There are also yellow ones that you have to collect to successfully finish the game. You are a square that is exceptionally afraid of the blue ones. If you run into them, you have to start all over again.