Move WASD / arrows / drag. Fire SPACE or auto on touch. Boost SHIFT (burns fuel, big magnet).
Hull + Fuel: fuel drains as you fly. At zero fuel your engine sputters and the hull burns. Grab fuel cans.
Chain: fast kills raise your score chain to x8. Taking a hit resets it. Greed pays.
Sectors: survive each sector, kill the dreadnought, pick 1 of 3 upgrades. Scrap buys permanent hangar loadouts.