Samples from "Bowser’s Castle Theme (Outside) - Mario Kart Wii Music Extended"
Cut your own sample from "Bowser’s Castle Theme (Outside) - Mario Kart Wii Music Extended" (29:59): 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 →