Back In Time (Brackeys Game Jam late submission)

Back In Time You play as bean boy an alien time traveler with a mission to exterminate the first human being. Unfortunately the machine malfunction rewinding you to the dinosaur time, 30 sec before the strike of the asteroid. With a broken gun, try to get to the end of the level. Will bean boy make it back home or will the time travel corrupt time and reality so much that the even time balance through out the universe will be broken