You can't be Wario in New Super Mario Bros 2.
Wario is not playable on New Super Mario Bros. However, he is playable on Super Mario 64 DS.
you can't be wario
no
Yoshi.
It's impossible. You cannot unlock Wario.
there are not characters in that game
You cannot play as Wario in the story mode, however he does appear in the minigame Coincentration.
Wario is not in New Super Mario Bros.
wario is not in the game
As far as I know you can't, but you can turn into Luigi!
You can't get Wario on New Super Mario Bros DS.