Patrol operation failed. Now we need to retreat.
Destroy all enemies chasing us and reach the base.
Buy new weapons, upgrade them and shoot!
WEBGL + Chrome version needs some time to load first time, following runs must be faster.
I suggest playing WebPlayer version in Firefox for better performance and faster load times.
Also in chrome Unity Web Player support can be re-enabled by pasting this into your chrome address bar:
Source: The Game Website.