I made 21 separate videos. 20 for each of the levels and one for movement and timing.

1. Movement and Timing

2. 1-1

3. 1-2

4. 1-3

5. 1-Tower

6. 1-Cannon

7. M-1

8. M-2

9. M-Ghosthouse

10. M-B

11. M-Cannon

12. F-1

13. F-A

14. F-Cannon

15. 6-1

16. 6-Ghosthouse

17. 6-A

18. 6-Tower

19. 6-4

20. 6-5

21. 6-Castle

You can skip a lot of stuff on the last video because I kinda messed up a lot. Anyway, I hope this guide helps at least someone either get started or get better at the game.