Geometry: Black Ball

About the game

Ten courses, one ball, and gravity that answers to a single press. Choose a level from the menu, where each button shows its difficulty with a small face, and the run starts right away. Press the space bar or the right mouse button to turn gravity over, so the ball drops to the other side of the track and slips past whatever blocks the way.

Every level ends at a finish line. Obstacles get harder further in, so the timing of each flip matters more, and a press a moment late sends the ball into the thing you meant to dodge. A shop sells skins that change how the ball looks.

How to play

• Pick one of the 10 levels from the menu; the face on its button shows the difficulty.
• Press Space or the right mouse button during a run to reverse the ball's gravity and move it to the opposite side.
• Time each flip to get past obstacles, then cross the finish line to clear the level.
• Buy skins in the shop to give the ball a different look.

• Free
• No download
• Works on phones