There are a bunch of submissions and I wanted to give feedback to everyone, so I'm going to list some strengths and weaknesses that I perceive from the GDD's in this challenge (take with a grain of salt, I recognize the challenge this jam theme + time limitations, especially during a holiday weekend).
Strengths: It's a cute concept of the main character becoming self aware. I appreciate the thought that went into your "Determination" system. I think this specifically is cool conceptually, and I like the idea that there's a bad ending where the MC just lost the will to carry on.
Weaknesses: There isn't enough information in these pages. You stated this doc was for programmers and designers (and, yes, investors) but truthfully there wouldn't be enough information about how this game is meant to work for me. Furthermore, it is unclear what the connection is between destroying your environment and the self-awareness of the MC. I'm unclear on the origin of the provided difficulty curve, both because there are insufficient references to the puzzles and because any additional mechanics (as you've described getting new ones as you progress) are not listed. I would have liked to see you take the Determination system and see how you could stretch that to include a range of mechanics. This would support your story about the Metaboy + its willingness to carry on while also maximizing the value of the system you've designed, and letting the player have a way to meaningfully interact with your game.