I know how to get wario but do you have to beat bowser twice to get him?

you don't have to beat bowser all you need to do is go upsairs throught the door right infront of the stairs by beating bowser a second time with mario but anyways once yo get upstairs get luigi(if you haven't got him get atleast 12 stars or more 12-20 and groundpound a really big boo then see another guide to that and if you haven't got mario yet I will put a link on how to get the charecters)but at the end of those steps there will be a door with no number of stars and red carpet like on the stairs and grab the flower power walk into the mirror and there will be a wario picture and a door go through that door to get another star but go through the wario picture and at the end there will be a ice guy a round ice man and you have to knock him off the edge and then he will give you a key with wario's hat on it just like with luigi's exept a diffrent hat and there is no waluigi in the game