Chonk

Moving. Drag him, or use the arrow keys — both work, and he answers immediately. He turns to face the way he is going, and a full-grown cat is slower than a kitten, but only by about a third. Eating. Anything at all without red spikes is safe to swallow, and everything is worth its weight: a crumb is 20g and a cow is 260kg, so the last stretch to critical mass is about finding something enormous rather than eating another hundred mice. Red spikes cost you a life, whether they belong to a wasp or to a goose that is simply too big — and a hazard becomes edible once you are 30% bigger than it, at which point the ring comes off. Power‑ups ride the lanes like everything else, glow, and are always safe: a heart, a shield that takes the next hit, longer whiskers, catnip that makes nothing dangerous for five seconds, cream, and yarn that drops the whole board to a third speed. Critical mass. Past 92% the meter goes red and says so; at 900kg he collapses, and what is left is a black hole. The hole pulls everything, including you, and every mouthful it swallows makes it a little wider. Crossing its edge ends the run. After a collapse the board stops dead and points at him — click or press a key when you have found him.