So, do you, yes you, want to save that one scientist that gets eaten by a barnacle in office complex?
Well i'll tell you how.
Firstly go to the vent that you usually go into.
then when you experience the incline part, repeatidely jump, you'll get a lot of speed.
then finally when you reach the scientist, shoot the area above him and unload that mag on that barnacle!
boom! you saved him