
Geometry: Black Ball is an arcade platformer focused on gravity-flip mechanics. Players control a ball that constantly moves forward, navigating through 10 levels of increasing difficulty. The level design utilizes narrow spaces, closely spaced spikes, and requires precise timing to maintain a safe trajectory from start to finish.
The character moves automatically in Geometry: Black Ball, so the entire gameplay revolves around choosing the right moment to flip gravity to avoid spikes on the ceiling and floor. The early levels provide enough space to get used to the pace, but later obstacles are placed more densely, forcing players to perform multiple consecutive flips in a short amount of time without making any mistakes.
The trajectory trail behind the ball displays a real-time movement curve, helping to analyze the cause of failure and adjust tactics for the next run. There are no checkpoints, so each level requires completion in a single full run.