1.Use 5 star challenges across your world: make a layer called 'silver stars' then get your npc it can be anything just collectable like a coin. Then in each of them in events choose no more objects in layer set to star. then in layer star, select anything that ends the level you are done.
2.Nabbit (NSMBU): you can use SMW ninji for playing the roll of nabbit.
3.Red coins challenge : same as 5 star challenge just use red coins instead of silver stars.










