Official OST for Splatoon 3, made by Nintendo. 
This played when Splatfests were being held.

Big Betrayal | Deep Cut - Splatoon 3 OST

Splatoon 3 - Suffer No Fools - Off the Hook VS Fire & Ice

Seasource - Sashimori (Splatoon 3)

Rainbow Color Inkantation - Now or Never Seven (Splatoon 3 OST) (Grand Festival)

am i worth it (ft. 1sapphire) [ALL PLATS]

The song’s core message is that adversity is a necessary force that shapes and strengthens the human spirit. The "grinding wheel" symbolizes life’s trials—pain, pressure, and struggle—that, while harsh, are essential for personal growth. Rather than breaking the individual, these challenges polish and sharpen them, forging a resilient, authentic self. The song encourages embracing hardship as a catalyst for self-discovery and transformation, with scars serving as proof of one’s ability to endure and evolve.

The Grinding Wheel

“I Can Jive” is a high-voltage rock ’n’ roll anthem, reborn in a tougher, modern package. With pounding rhythms, driving guitars, and a raw vocal delivery, Robby Rockabilly captures the timeless spirit of 1950s rock while adding his own unmistakable edge. The track fuses vintage energy with a fresh punch, delivering that instantly recognizable Robby Rockabilly sound — cool, rebellious.You cant sitt sitt still then you listen on this song!

Seasource - Sashimori (Splatoon 3)

Fukagamine