I'm guessing that the second key wasn't fully developed, since I wasn't able to find a way to pick it up, but the game is a pretty solid start. A bit of mystery, add some atmosphere, and I could see this looking really good.
I will definitelly try to improve the game with updates :D
Next up: better AI and less empty map
I hope I'll be able to make this update just as the gamejam rating period is over :D