I've fixed the web build not loading, thank you for letting me know!
I'm glad you liked the body motion, I probably spent a bit too much time making it work ahah. There is something happening to the rat when you eat cheese, but it's a bit difficult see if the rat is aligned with the camera, much easier to see when going sideways.
The game do need more mechanics for sure. I couldn't come up with an idea that would've fit well with the theme, so I instead decided to go for simpler mechanics and focus on learning how to work with 3D assets, animations, sounds, navigation and 3d physics in Bevy.
Thank you for playing the game and the kind words!