Rest areas will make a return, displaying healing items or surprises for Smash players, but they will also indicate the next character you’ll face, along with the year they first appeared in a solo video game venture – handy for those players who would like to scrub up on their video game history and knowledge. Here’s what Sakurai said on Miiverse regarding All-Star Mode:
This time, you can challenge every fighter in All-Star Mode from the moment you turn on the game!! This is a survival battle with limited recovery items and no option to continue. However, this mode will be incomplete until you’ve unlocked every fighter… Until then, you can only play against characters that are already available. This is a picture of the bottom-screen menu, with a padlock indicating that the mode is still incomplete.
In these battles, multiple opponents appear in one stage, and you clear the battle by defeating a number of them. The rest area that appears between battles displays the next opponents and the year the characters made their first appearances, and it also holds recovery items and an occasional reward. The characters you fight against appear pretty much in chronological order. Behold, the history of Nintendo games!!