Ah, my first EXE game.
This really brings back memories in terms of boss themes. It's the first time I had ever heard a composition like this one. While I always preferred the tournament battle theme's faster pace and more serious tone, this really personifies some of the best of EXE1~3.
You didn't just capture the song's tone in this one, you really one-upped it in terms of gravity and appeal. The speed is faster and more fitting for the instrument selection, and it really feels as though it's what EXE3 would be like on the DS. Nice twist on the original melody whilst keeping the overall rythm and melody the same as the original.