Wow, this is your first game and you did it in just 6 days? You should be really proud of yourselves!
As for more content, I think adding more different mini-games would make it more fun. Also, Buggy could move themselves and also move items in the room around behind your back when you're focused on a mini-game and don't see it happening.
Also, if you want to expand on the idea of getting a prize for surviving in this room, you can add some small in-game prizes for reaching time goals.