When I read the GDD this game reminded me of a Metroid-vania; a classic among games.
Your GDD was well structured, supplemented with good visual aid to help others see your vision, and sets the stage for a fun adventure!
The game and the presented mechanics can quickly fit into that genre as well! I'm glad to have been able to evoke that! Furthermore, while it is possible to evoke it with some Metroidvania games, I believe that this genre goes beyond a set of specific mechanics and aims to evoke an emotion that shapes the player's experience, similar to genres like Action or Horror.
Thank you for taking the time provide feedback! I greatly appreciate it!