The fourth out of 5 compilations of my all time favorite custom SMB3 levels from 2010 to 2021. Levels in this 4th lineup are:<br />1. Plain Simple<br />2. Koopahari Desert<br />3. Tank It Up<br />4. Bony Desert<br />5. Seashore Slam<br />6. Thwomp Town<br />7. Custom Water<br />8. Subtle Slopes<br />9. Bro Battle Bash<br />10. Flooded Fortress<br />11. SMA4 Mad Dash<br />12. SMA4 Underground Action<br />13. Focal Fortress<br />14. Focused Fleet<br />15. Fortricus Giganticus<br />16. Freezing Fields<br />17. Sunny Slopes<br />18. Sample Ship - Alternate<br />19. Simple Fields<br />20. Coppitt Clouds
