Cosmic Crusade - Round 2

Cosmic crusade is a space shooter and exploration mixed reality game. You are lost in deep space, an alien species has invaded earth, you are humanity's one of the last hopes, you are a cosmic crusader.

Oxygen is continuously depleting. You have to fend off the monsters until you can activate the portal or you die.

Reach 40 score to unlock the portal gun and jump to an ancient timeline, so that you can learn the alien's secrets!