According to my design docs, State-4 is going to be pretty straightforward. You'll have to backtrack a bit between locked doors and various paths at crossroads but there won't be any breaking down or restoring. That is, if I'm reading my design docs right. State-4 is acid land, enemies deal poison damage and leave puddles of damaging acid wherever they go. Clouds of gas and flowing bubbles are also pretty common there. Fun times for all!
Currently working on: Continuing the story
Time spent on the project so far: 339 hours