Mario Kart DS - All Unused Courses

All unused courses (excluding test1_course since I don't have the fixes for it) in Mario Kart DS.

Always play on course code: 02207200 000000XX

old_mario_gc: Unfinished GCN Mario Circuit. Probably used for model porting testing. (02)

luigi_course: POC for Waluigi Pinball (03)

dokan_course: Pipe collision test track, POC for MK7 Toad Circuit (04)

donkey_course: Object path testing and POC for DK Pass (06)

wario_course: Unknown copy of Wario Stadium missing objects (07)

nokonoko_course: Water and other tests, POC for Cheep-Cheep Beach (08)

test_circle: Self-explanatory. (15)

pinball_course: Mid-development Waluigi Pinball (21)

Enjoy the video!
Recorded with NO$GBA 2.8d and HyperCam 2