The game is a mode in the popular Geometry Dash game. It's one of the most challenging modes to master because it requires your full attention, constant vigilance, and, most importantly, reaction! At first glance, the game seems easy, but can you survive 30 seconds on normal difficulty? To help you train and improve your reaction skills, we've included different levels of difficulty. The controls are simple, but the game itself is stressful. Your ball will fall down, but you can make it rise up by holding down the left mouse button or your finger on the phone screen. If you let go, it will start falling again. You can touch the ground or the ceiling, but you have to keep your finger on the screen.