Perception! vs Coil

Test your focus, memory, and reaction speed in this fast-paced tile challenge. You’re given a board of tiles. Each tile has a shape, a colour, and a specific action — tap, hold, or swipe. Tiles start inactive. One tile becomes the newest active target. Your job is simple: Find the newest active tile and perform the correct action. Every correct move activates the tile permanently. Then all tiles flash at once, and a new target is selected. The change is subtle. You must rely on sharp attention and fast reflexes to spot it. The board fills up. The speed increases. One mistake ends the run. Core Features - Shape and colour recognition - Tap, hold, and swipe mechanics - Reaction-time scoring system - Subtle visual change detection - Infinite progression - Randomized board layouts - High score challenge Accuracy matters. Speed matters. Focus matters. This is a game of attention under pressure. Train your memory. Improve your reaction time. Push your high score.

Coil is a minimalist path puzzle game that's easy to pick up and endlessly satisfying to master. Draw a continuous path that fills every square on the board. Simple rules. Hundreds of challenges. HOW TO PLAY Tap and drag to draw a coiling path from start to finish. Every square must be filled — no gaps, no shortcuts. When the board is full, you win. 500+ HANDCRAFTED LEVELS Progress through hundreds of puzzles across multiple difficulty tiers — from breezy warm-ups to brain-bending challenges that demand real strategy. Each level is carefully designed to keep you thinking without ever feeling unfair. DAILY PUZZLE A brand new puzzle drops every day. Come back each day for a fresh challenge and keep your streak alive. BLITZ MODE Race against the clock in Blitz — a fast-paced mode that tests how quickly you can think and draw under pressure. EARN STARS Complete levels to earn up to 3 stars. Speed through a puzzle for a perfect score, or take your time and still walk away with the win. CLEAN & DISTRACTION-FREE No ads. No timers on the main game. No interruptions. Just you and the puzzle. Whether you have two minutes or two hours, Coil fits your pace. Pick it up on your commute, wind down with it at night, or go for a perfect run on every level. Can you fill the board?