So I played it and found the code and put it in at the garbage bins on the 2nd loop once it showed up and I also gave the guy at the garbage bins a banana and he said something but it disappeared before I could catch it. The bananas ended up on one of the pedestals in the secret underground area that opened up from entering the code but I'm not sure what I'm supposed to do for the second pedestal. There was also a floating stretchy red guy in the milk cooler area but I couldn't interact with him and couldn't stick around due to flashlight guy bugging me. I also trashed a blender. What else is there to do, I'm not sure if the game has anything else in it or if it being a demo means I found everything.