Hi Jo!
I really really like the world-building that you managed to flesh out in so little time. The sci-fi city background was a fantastic addition and carried the imagery far. I think my one concern regarding the image was that it made the text a little hard to read at some times, and other times I couldn't find the magenta/blue text because it blended in with the neon of the image, but ultimately its impact was more positive than negative.
I LOVE games like this, where little choices completely determine the ending. There is so much tension in the fast-paced narrative you're going for. The first time I played through, I got the ending where Jessie is shot by Hoard. There was no "Play Agin" button here for some reason, so I had to reset the page. To save time in the future, it would be helpful to have this as an option even if you "lose." The second time, varying my choices in some areas but staying consistent in others, I successfully got her/him/them out alive. Yay!