Boss Baby uses "Toddler Tempest Tornado Twirl" to summon a whirlwind of toys and debris, followed by "Baby Brawler Bash" where he jumps and pummels Naruto with his fists.
Naruto counters with "Ultimate Rasengan of the Demon Fox," a massive ball of energy that explodes on impact. He then uses "Shadow Clone Barrage of a Thousand Blades" to overwhelm Boss Baby with a barrage of blades.
Boss Baby retaliates with "Naptime Night Night," which puts Naruto to sleep instantly. He then uses "Diaper Dump Truck," where he transforms into a giant diaper-clad monster and crushes Naruto.
Naruto gets up and uses "Sage Mode: Massive Rasenshuriken," a giant spinning blade made of energy. Boss Baby counters with "Crying Baby Chaos," where he summons an army of crying babies that distract and overwhelm Naruto.
The final strike comes when Boss Baby unleashes "Tantrum Titan Transformation," where he transforms into a giant screaming toddler that shoots lightning from his eyes and thunder from his screams. Naruto uses his "Tailed Beast Ball," a giant ball of chakra that crashes into Boss Baby's lightning, causing a massive explosion.
In the end, Naruto emerges victorious, but both contenders are left exhausted and defeated.