Reaction Time · medium difficulty

Shapeshift practice game

Identify brief peripheral shapes accurately as the viewing window contracts. Practice 60 rounds free with no account required.

• A circle or square appears briefly in a random position during each of 60 rounds
• Identify it before it disappears; the display window gets shorter as you progress
• For spoken prompts or additional processing time, enable Extended response time in Session settings or Game options
• Keep your gaze near the crosshair and identify shapes with peripheral vision
• Build an automatic left-square and right-circle response without guessing early