All Humans Must Die!

Welcome, earthling!Are you ready for a little attack on humanity? Then get into the U.F.O. and kill as many people as possible in 60 seconds. But don´t get hit! We had to divert all shield power into the disruptor. Now we destroy these annoying little creatures with just one shot. But we are helplessly at the mercy of their unruly shots. What are you still doing here? Off with you and have some fu…