Endless Heck Mode has been added. Get to the exit while avoiding an endless stream of enemies. Don't get hit though as you will start from the beginning.
Version 2 - Endless Heck Mode!
Source: Steam Community (opens in a new tab)
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 8526758 · public branch
Steam updated · First observed