Controls
Move with WASD or arrow keys. Hold space to fire. Press Enter after a wipeout to launch another run.
Threats
Bacteria swoop in waves, gas sacs spit acid, and drifting poo chunks clog the route. Avoid side walls as the tunnel tightens.
Upgrades
Yoghurt containers raise your weapon tier and patch minor hull damage. Each new stage makes the tract faster and meaner.