In his last few posts on Miiverse, Super Smash Bros. director Masahiro Sakurai showed off some of the menus from the Nintendo 3DS version of the game. You can view his comments below.
This is what you see after you click on Games & More. There are many modes to choose from. There’s the Options button, too.
Futhermore, this is what the screen looks like after you click on Solo. In the Stadium, you can find the Home-Run Contest, various Multi-Man Smash challenges, and Target Blast!