Intro - Already love the fusion of folk and synthetic sounds. Fantastic swells, give off a great sense of grandeur.
Exploration - Great driving energy, like you're exploring in a futuristic vehicle of some kind. Love the choice of tonality in this one, full of adventure, and the hook is fantastic.
Battle - I'm kind of imagining an armored core style bullet hell fight with lots of flashing colour. I can see why it's a favourite, it goes hard.