Master tricky rotational puzzles in Arctan! Calculate the blue ball's trajectory, steer clear of deadly red blocks, and set a new record today.
Arctan: A Mind-Bending Rotational Trajectory Challenge on Block Blast
Developed by WaveParadigm, Arctan is a minimalist physics puzzle game with a captivating level of difficulty, reminiscent of the unique gameplay found in titles like Drive Mad or Longcat. The game presents a deceptively simple challenge: navigate a blue ball across treacherous terrain by repeatedly latching onto and releasing from rotating pivots (spinners) to reach the finish line safely.
How to Play
- Access the Block Blast platform to dive straight into a series of 12 distinct puzzle levels. You are free to choose and play any level at random, without being restricted to a specific order.
- Core Objective: Guide the blue ball to the final finish line of each level.
- Movement Mechanics: The ball rolls forward automatically due to momentum when on a flat surface and automatically latches onto the center of a spinner when it enters the spinner's range.
- Deadly Red Block Traps: Stay well away from red blocks. Even the slightest collision will cause your ball to explode instantly, forcing you to restart the level.

Spinner Types
- White Spinner: Always rotates counter-clockwise.
- Gray Spinner: Always rotates clockwise. Memorizing the rotation direction of each color is key to determining the ball's trajectory before making a move.
Controls
Mouse / Touchscreen: Left-click (or tap the screen) to release the ball from the spinner. Upon release, the ball immediately flies off or drops, following the tangent and centrifugal momentum present at the moment of the click.
Top-Tier Strategies and Tips
- Choose a safe launch angle: Don't rush to click the moment the ball attaches to a spinner. Observe the ball's circular motion and only click when the trajectory points toward a safe platform or the next spinner. Falling into the void means failure.
- Account for acceleration and momentum: The spinner's rotation speed generates centrifugal force. When the ball transitions from a counter-clockwise spinner to a clockwise one, you must adjust your timing strategy to avoid releasing the ball at the wrong angle.
- Anticipate the path: Use the game's static moments to survey the entire level before your first click, mapping out the sequence of spinners you need to navigate stage by stage.
Arctan FAQs
How can I distinguish the rotation direction of the spinners in Arctan?
Look at their colors: White spinners rotate counter-clockwise, while gray spinners rotate clockwise.
Do I have to complete the levels sequentially from 1 to 12?
No. Arctan allows players to choose and play any of the 12 levels directly from the level selection screen.
What happens if the blue ball touches the red blocks?
The red blocks are destructive traps. As soon as the ball hits them, it explodes, and the level resets from the beginning.
Are the controls in Arctan complex?
No. The game uses a minimalist one-click control scheme: simply click at the right moment to release the ball from the rotating axis and launch it via momentum.