The metal iron core slides automatically along multi-layer industrial pipeline tracks. Tap anywhere on screen to toggle global red or blue electromagnetic zone. The core only adheres to tracks matching the current magnetic hue, so timing your switch changes its branch path to avoid reciprocating mechanical baffles. 3 barrier collisions will fail the level.
Difficulty scales gradually: early stages feature simple dual-fork pipes with long magnetic toggle cooldowns, while advanced levels add interlaced layered track networks with drastically shortened switch intervals that demand fast consecutive taps to navigate safely.