I was playing with a friend, and we expected for this to be a puzzle game, so this was surprising and unpredictable to us, that the fourth level was with time limit. What was the designer's idea, that made that level time-limited? Time pressure to think fast? But you have infinite amount of lives, so this feels more like "oh, I've gotta check that place for clues one more time, 'cause the game doesn't let me have enough time to check it fully"
The idea was exactly to change the pace of the game and provide variation. The level was also intended to build tension for the narrative structere as that is the penultimate level and the last one in which the characters are still trapped inside the building before their escape.
Throughly searching the level was actually something we had not thought the players would be doing in the level. Thank you for pointing out your experiences. If we will ever continue the project, I'll take these comments into account.
Thanks for taking interest in the game. I hope you enjoyed the other levels!