Mario Kart 8 Deluxe Nspbooster Course Wave 1 Extra Quality -

Flat green textures are replaced with layered, individual grass-blade shaders.

Wave 1 tracks (especially Ninja Hideaway and Paris Promenade) drop frames on stock hardware. To achieve 60 FPS locked:

Maximizing Visual Fidelity: Mario Kart 8 Deluxe Booster Course Pass Wave 1 Extra Quality Guide

A nostalgic trip back to the Nintendo 64 era, complete with falling rocks and treacherous chocolate paths.