Eldritch Bullet Hell

Eldritch Bullet Hell is a cosmic space horror game 2D Adventure game. You are the last survivor of the human race. Earth is now a desolate planet but some humans were able to develop a powerful superweapon. You were able to locate the superweapon and learned it was an artificial power suit which can eliminate any lifeform regardless if it was mortal or immortal. The gods wiped the human race, so it’s fair game if we do the same right?