As you know, in Super Smash Bros. Ultimate you get started with the classic characters and you have to make a lot of effort to get the full squad of 74 wrestlers, either in the world of light. However, surely this will lead you to ask yourself in what way can I get them all before?
Check out what that person said:
Fastest way to get all the characters is to play one game close the game reopen play one game repeat. This gives you a new character every time. Also if you lose to the cpu and rage quit close your game before “GAME”(which I did countless times ha) you get to fight them again
Source: Click here