On rare occasions, some promotional materials for WarioWare games featured Charles Martinet as Wario mentioning real world brands, contrasting how Mario games have tended to stray away from direct pop culture references in recent years. In a 2009 British commercial for WarioWare D.I.Y., Wario verbally promotes the availability of the game at the supermarket chain Tesco. Later in 2021, at the end of a promotional "takeover" event for WarioWare: Get It Together! on the Nintendo of America Twitter account, his final message before the end of the event opened with the words "Twitter stinks".