You’re a lone runner in a maze of electrified rooms, each one freshly generated and full of robots. Shoot in eight directions, dodge their shots and run out through any open doorway into the next room — touching a wall is fatal. Robots are dim and often blunder into walls and each other. Linger too long and the bouncing grin comes for you: it can’t be shot and floats straight through walls. Clear a room for a bonus. Free, no sign-up — play right in your browser.