Nintendo just held a special Direct presentation for Super Smash Bros. Ultimate. Series creator and director Masahiro Sakurai revealed tons of new details for the upcoming crossover fighter on Nintendo Switch, but he's not ready to share every secret just yet. With four months left to go, Nintendo wants to hold some surprises back for reveal a little later, and Sakurai just teased one of them today.

Near the end of the Direct, Sakurai gave us a look at the main menu screen. It contains standard options like "Smash," "Games and More," "Vault," and "Online," but that's not all. In the bottom left-hand corner of the menu there's a green button that has its text and symbol blurred out. What could this mystery mode be?

Source: Super Smash Bros. Ultimate Direct