The starting roster may look underwhelming when loading up Super Smash Bros. Ultimate for the first time. You’re given eight fighters to choose from—the same amount offered to Super Smash Bros. players on Nintendo 64 back in 1999. And you’re expected to unlock the other 66 characters by playing different game modes.
Usually, you are expected to unlock characters by completing the game’s main adventure mode, where finding a fighter there immediately unlocks them in your roster. There are ways to unlock characters in Classic Mode over time, like how the original games would lock characters away.