What's New In Mario Maker 2? (4 New Courses, July 31)

Here are the level codes in order of appearance in the video.

Adventure of Link – C1P-GGK-0QF

Short Trials – C1T-SBD-F1G

Mirror Mario – 3Y7 – YHQ – 2LF

Bowser’s Deplanetizer – 928 – 7L6- C5G