Explore vast insides of an enormous alien spacecraft - The Colossus. Fight gravity, anomalies, drones, doors, giant lasers and bosses but mostly: your craft's inertia. You didn't bring any weapons so finding your way through all the 72 levels may prove difficult. Master as many levels as possible so you can spend some skill points to skip "impossible" missions. Remember, once you unlock a level you can always let a simulated "ghost" show you the right way. You can also play the game on your PC or MAC in your browser on www.nullchained.com.