Samples from "Rock Rock Mountain (3DS) - Mario Kart 8 Deluxe Music Extended"
Cut your own sample from "Rock Rock Mountain (3DS) - Mario Kart 8 Deluxe Music Extended" (30:18): trim any section on the waveform and download it as WAV or MP3, free on Samplecut.
Source: the original on YouTube →
Guide: YouTube to WAV or MP3 →