As of right now, 2S2H does not support HD Boss Titles, this mod will release once an update releases that fixes this, and I have had time to text to ensure they is no issues with the mod.

Changes all the boss titles to be HD versions, both in the style of the N64 original and in the 3DS remake variant. Download will include 2 O2R files that you can choose between each verison.

2S2H HD N64 and 3DS Boss Titles

Credits

All texture created by WildFyr
2Ship2Harkinian by Harbour Masters
The Legend of Zelda: Majora's Mask by Nintendo