Unlock new characters
You can expand FighterZ’s 21-character roster with three unlockable fighters: SSGSS Goku, SSGSS Vegeta and Android 21.
To get the more powerful, blue-haired Goku, you’ll need to score an A-Rank on the Extreme Gravity Spaceship course in Arcade mode on Hard difficulty. To get SSGSS Vegeta, you’ll need to do the same on the Hard version of the Hyperbolic Time Chamber Course. Note that you’ll have to beat both of these courses on Normal to get their Hard variations. You can also get these characters by spending 300,000 Zeni for Vegeta and 500,000 Zeni for Goku, but grinding for that much in-game currency could take you weeks.
To get the main baddie Android 21, you simply need to beat all three arcs of the game’s story mode.