Dark industrial guard game. Spikes and flying enemies rain down from above, and the player draws neon glowing lines on screen to block every threat and protect the warm glowing bulb at the center. Each line costs ink and fades over time, so you must keep drawing new barriers to handle the escalating onslaught. Survive 60 seconds to advance to the next level - higher levels bring denser, faster spikes plus horizontal flying enemies. The bulb has 3 HP, losing one per spike hit. Drawing spirals or zig-zag barriers lets you block dozens of spikes at once, building block combos for bonus score.