Wave 5 includes three additional characters and eight new courses for the Mario Kart 8 Deluxe game.
Mario Kart 8 Deluxe – Booster Course Pass: Wave 5/Mario Kart™ 8 Deluxe/Nintendo Switch/Nintendo
Predicting Wave 5-6 of the Mario Kart 8 Deluxe Booster Course Pass
Discuss Everything About Mario Kart Racing Wiki
Ranking the Mario Kart 8 Deluxe Booster Course Tracks: Wave 5
Mario Kart 8 Deluxe: Booster Course Pass Wave 1 Update Out Now, Launch Trailer Released - Game Informer
Mario Kart 8 Gets More Characters Because It'll Never Die
Mario Kart 8 Deluxe Booster Course Pass Wave 5 details revealed
Mario Kart 8 Booster Course Pass Wave 5 Release Date Set
Mario Kart 8 Deluxe – Booster Course Pass Wave 5 Launches This Summer - The Tech Game
Mario Kart 8 Deluxe - Booster Course Pass Wave 4 lands 9th March
Mario Kart 8 Booster Course Pass Wave 5 Releasing Next Week; Course List Revealed - Noisy Pixel