New Super Mario Bros. DS Castle Mashup

The final battle approaches...
This is a mashup of the castle theme from New Super Mario Bros. DS, requested yet again by ‪@FS-fr4lw‬. This theme sounds so much like a final castle theme that both the Newer team and the MFAW team had the same idea: putting it in their final castle. Newer DS's theme is just a rip of the Itadaki Street DS remix, but it still sounds great :)
Disclaimer: All music rights belong to Nintendo.
Image credit: Uploaded to the Newer Super Mario Bros. Wiki by BeingAwesom
Music credits:
New Super Mario Bros. DS - Main Boss Castle - Composed by Asuka Ōta, Hajime Wakai, and Koji Kondo
Newer Super Mario Bros. DS / Itadaki Street DS - Final Castle - Arranged by Hayato Matsuo
Mario's Final Adventure Wii - Bowser's Castle - Arranged by CubixL