This game is pretty great! I've got a couple pointers for you.
The text in the intro seems to run off the block. Try making the label the text sits on bigger to accommodate that or make it as large as your largest text.
The player enters a door, but always returns to the same spot in the room with all the doors. Would you be able to make the character spawn next to the door they came in from?
The doors can be finnicky to open.
Grey on blue can be a little hard to read. Might I suggest green on black?
Overall, I like where this is going! I'm excited to see where this goes.