Control the last KX-3700 Army-class robot in existence against the never ending onslaught of other robots sent to terminate you. Upgrade yourself in 8 different tracks. Version 5 will get you the tier 2 upgrade and version 9 will get you tier 3. How long can you survive?
You must destroy the incoming robots and try to survive for as long as you can. Between each round there is a chance to upgrade your robot after you gain cores.