Yeah i found a zip in hydrocity act 2 while messing around with the first pipe. I knew that pipe can put you in the wall, so today i started act 2 and got crushed to reset boundaries, and messed with the pipe. Sure enough i zipped.

https://drive.google.com/open?id=13geb1QnvUHVzCSt76-xQBsb0jHS1ahZm

Don't know if this is useful or not, but its there!