No, that makes sense! A lot of it is correct. With my game I used voice acting so I was able to iron out grammar, and I've also been proofreading others papers in high school and college for years. You do have a lot of dialogue, so your best bet when you work the game in the future would be to go through each event to make sure things are in line. It might take a day, but making sure everything is consistent and changing things to match the story will make it that much more impactful. I would also fix the credits, that's where I noticed the most spelling errors! I thought your story was strong, just those little touches add a lot!