If all the numbers below are accurate Sparking zero is outselling every major current fighting game
From what I found these are all the current copies sold.
Sparking zero - 5 million in 4 months
Tekken 8- Around 2 million - this one is the most iffy because they haven’t reported any milestones for a year now.
Street fighter 6- 4.4 and that is recent
Mortal Kombat 1 - over 5 million. Recent too
This game hasn’t even been out for half a year and it’s dominating the genre. Shueisha and Toei need to stop sleeping on this franchise. Bandai also needs to start supporting the game more. They can’t let the game lose its steam. With the right support they can even outsell fighterz and xenoverse 2 in no time.