Yo now that i have multiples of these comments, i now understand how poorly i designed these first two rooms. it is actually a bug, but also a design oversight. there's a piece of paper in the floor of the first level, and what you have to do is interact with it (here's the bug: it won't tell you you can interact with it. you can) That's the code for the level two keypad. The original point of the puzzle was to introduce the concept of players going in-between rooms. But due to lack of feedback and this bug, that isn't something well conveyed to the player. sorry about that. thank you for the feedback