I loved this game! The design is so cute and wholesome <3. I think it would be great to balance the scoring a bit more. The time bonus actually give so much bonus that it's better to ignore getting the correct stars and just make it to the top as fast as possible. Although, maybe this was more intended as a racing game rather than a getting-the-stars game, in that case, not sure about the utility of the stars, since they don't affect the score much. It's more of a game of chance whether you encounter more or less negative stars on your race to the top.