This is a Youtube playlist of tutorials for the following:

1. Infinite fluttering (using a guide made by Pottoww)
2. Luma bounce in Sky Station 1
3. The infinite flutter skip in Yoshi Star 1
4. The infinite flutter skip in Yoshi Star 2
5. Optimal strats for Gobblegut
6. Boulder Bowl 1 skip (both with and without Rock Mario)
7. Bowser's Lava Lair 1 (just the stage)
8. Cloudy Court 1
9. Tall Trunk 1
10. The infinite flutter skip in Haunty Halls 1
11. Bowser Jr.'s Fearsome Fleet (shows both the normal variant and question block flutter + Megahammer)
12. Sweet Mystery 1
13. Flipsville 1 skips
14. Chompworks 1
15. Starshine Beach 1
16. Starshine Beach 2 skip
17. Behind the Castle in Gravity Gauntlet 1
18. Gravity Gauntlet C skip
19. Boo Moon 1 skip
20. Shiverburn 1
21. Zig-zag skip in Melty Monster 2
22. The infinite flutter skip in Bowser's Galaxy Generator

https://www.youtube.com/playlist?list=PLTe2_-uzMypuIkKdcbojY4SRV1WALqwKQ