First, I can see this game is not very... popular. However, I still think it could be fun to add new categories. Each individual mission should have a category, full game should not include the diamond class levels and instead should be a separate category or sub category, as you don't need to beat diamond class to consider the game beaten.

There should also be subcategories like Any%, 1 star, 2 star and 3 star. This would make more runs possible, such as skipping the level entirely and trying to land.