When Nassy (Alolan Form) pops out of the Rocket Gang's mecha's control panel and Nuikoguma climbs up Nassy's trunk, this is a callback reference to Yatterman (ヤッターマン) when Boyacky is complimented by Doronjo and a small mecha pig on the mecha's console climbs a coconut tree.
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Heart of Fire! Heart of Stone!
Iwa wo mo kudaku atsuki heart! Lychee to Takeshi!!
A Passionate Heart That Smashes Even Rocks! Lychee and Takeshi!!