I dunno; with Mario, the victory theme's iconic. With Pokemon, the main theme's more iconic than the Victory music. Same with Zelda & Pikmin, IMO.
Splatoon has 2 popular choices for victory music that can just be copy-passed; I doubt we're just getting Splattack! if the Inklings get in.
This isn't iconic? Those first notes are music to your ears after beating a gym leader.
And the Zelda fanfare is a victory theme from the series, not the main theme.