After playing Slap City, I find it even more ridiculous that people call NASB "derivative" of Smash - Slap City is a game I'm pretty comfortable calling a "Smash clone" (non-derogatory), if you're playing casually the only real mechanical difference is the single Air Smash each character has, the differences lie beneath the surface for hardcore players to discover - NASB, on the other hand, is almost as mechanically distant from Smash (modern or golden age) as you can get without doing some PSASBR "only supers kill" BS, only behind Rivals.