How do you unlock Mewtwo in Brawl?
It is much more difficult to unlock than most other secret characters in Melee, however; it can be unlocked after either playing 20 straight hours of Vs. Mode matches (5 hours for four players), or playing 700 Vs. mode matches. An easy way to unlock Mewtwo is to leave a versus match overnight.
How do you get Mewtwo in Super Smash Bros Ultimate Adventure mode?
In World of Light, Mewtwo can be found in the Mysterious Dimension, and is unlocked after defeating the Wispy Woods’ spirit. Unfortunately, it can take well over 20 hours for players to get that far in World of Light, meaning that this is another time-consuming method to unlocking the popular character.
How do you unlock Greninja?
Greninja can be unlocked through various means, both by playing Classic Mode, Vs. Smash Matches, and he can be unlocked in the World of Light Adventure Mode. Classic Mode: Beat Classic Mode 6 times as Donkey Kong or anyone he unlocks to get Greninja.