The pixel art style is well done, and I your prototype was fun to play. Fortunately I use Chrome so I didn't have any issues playing it, but thanks for the warning regarding Firefox none the less. The aesthetic and gameplay were fun, and I especially enjoyed the wall climbing mechanic with the platforming. Whether or not this was intentional, as a Hollow Knight fan, wall climbing is such a fun mechanic. I could see how you plan on implementing the theme from your documents, as the main character is trying to Petition to help fight the consequences of climate change, and I can't wait to see how this is seen in your game. I'm a little confused about the timer though, as it doesn't stop even after exiting the tab. Aside from that, I enjoyed your prototype and look forward to seeing the full game.