Kill all the aliens before they kill you.
Fight hard and earn money for better weapons. Level up so you will get stronger.
Work your way up through 5 diffent stages.
If you earn enough money you can unlock an even more violent mode. Are you up for the task?
Last updated on 2016年03月30日
此版本包含小幅錯誤修正和一般改善。請更新至最新版本，以獲得最佳體驗。
