Really enjoyed the room-by-room. There a sense of urgency from the timer and excitement to see what's on the other side. It's paced well. The player can't hesitate too much, but there's a little time to consider options. I found I needed a strategy before starting to make the decisions quickly.
The intro room gives a lot of information all at once. I left it understanding that there's a safe door, a risky door, and I'll gain some, double, or lose all my biscuits. It's a nice moody room to start in. I appreciate that you can see screens reflected in each other.
It wasn't immediately obvious that I was trying to meet a quota in a set amount of time. That's information that I gained from entering the room, and I felt rushed, so I only read it after a few rounds.
The red=bad vs green=good scheme does a lot of work. It immediately signals that something went right or wrong, which was really good, since I was whizzing through the rooms.
Fun short game.