I was able to play your game by installing the required Unity version, but please the next time include a build and if it's possible a web build to play it on the browser.
Now about the game:
- I miss having a background music, it really adds to the atmosphere of a game so consider adding music in the future.
- I like the art of the character, even though there is some jittering when walking
- I think there's a bug in which you can win without collecting all the required cups
- I am not sure as how this game fits the theme, but as this is not a requirement it's okay
Overall it's a fine and simple game, which can improve a lot. Keep it up participating in game jams, it's also cool that you included the source code.