I loved this! The art style, the sounds, the gameplay, all awesome! I would best describe this as a cute sandbox game.
My only critique is that I want more of it! I think the enjoyment from your game is earning new objects and working out what on earth to do with them, with no rush or pressure. Maybe you could add a timed mode with a scoreboard if you want to speedrun this game?
*SPOILERS* I loved the little guy running around in their hamster ball!!! This game is so adorable but that particular dude has a special place in my heart :)