This was very fun to play! I liked the different mechanics you implemented like water killing the robot but not the person, and vice-versa with toxic gas. Not necessarily a new idea but I still enjoy how you implemented it. I also thought that the atmosphere and lighting in the plant area was great. A couple suggestions I have, in the chemical area it was difficult to tell between foreground and background (I thought at first that the barrels and white outlined pipes were solid), and maybe implement a checkpoint in some of the longer levels since it can be tedious to restart after a small mistake.