Your twist on dying is pretty good - I certainly haven't seen it too often, which is a good plus for you in Theme. However, I think the hitboxes are a little large, which might lead to "unfair" feeling deaths. Some background music or more ambient sounds could also help with the environment.
Also, I think you could either make the player move faster or shrink the area size - currently, you have all this space, but since it takes so long to move, it feels slow and clunky. Fixing either the player speed or the area size would make players feel more like they're in control of their positioning on the map.
Despite the issues, I enjoyed playing the game, and the first time I saw the error screen I legit thought the game crashed, which is good for immersion. Good job!