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Board builder — design your own arena. Draw walls to carve out a
custom layout, then save it or copy a share link so you can play it with friends.
Head colour — pick how your worm looks.
Steer with the mouse. Your head is your identity (its colour is you); the tail colour shows your type. Start as a head + 2 tail; eat coloured motes to grow the tail and set your type. Red beats Green beats Blue beats Red; a coloured worm beats a neutral one.
Your tail is your one resource. Battle anyone: colour decides the winner; the loser sheds a tail chunk (which drops as food) and goes neutral. Caught with no tail → eaten. Space = boost (shed a tail piece as bad food). Hold W = shed tail into a wall. Hold R = rest / radar (forecast nearest rivals).