[spoilers]: Mario Kart 8 Deluxe: Booster Course Pass Mega Music Leak

The leak occurred through , which are very short (roughly 1-second) snippets used to prevent audio lag when a race starts.

Released alongside Wave 2, this update contained leftover data. The leak occurred through , which are very

These music files aligned perfectly with a previous "Prefix Leak" that showed which game system (SNES, GBA, etc.) each slot belonged to, making the predictions near 100% accurate. 🏎️ Completion Status The leak occurred through

The leak was considered "mega" because it provided concrete evidence for tracks across multiple upcoming waves, specifically focusing on Wave 3 and beyond: London Loop (Tour) Peach Gardens (DS) Boo Lake (GBA) Rock Rock Mountain (3DS) Berlin Byways (Tour) Waluigi Stadium (GCN) Merry Mountain (Tour) Rainbow Road (3DS) etc.) each slot belonged to