I love the concept of this game, kind of reminds me of the card game "Boss Monster" how it puts you in the shoes of the video game antagonist. Great art and animations as well.
For feedback, I would recommend to cover the solid black parts of the level (i.e. the "outside") with tiles, just to make it complete (more of an aesthetic fix really). Also, I got confused with the trap door in the beginning, as I thought I could hide treasure there.
Lastly, I'm sure that this was rushed for the jam, but for the instructions it would better if you had some graphical demonstrations of how to put keys and treasure in things as it took me a few tries to figure out how the game is actually played.
Other than that, great job! And I'd highly recommend that you continue with this.