J-pop idol bangers crashing into Fire Emblem battle themes. Genei Ibunroku #FE Encore on Switch is that Tokyo Mirage Sessions crossover that shouldn't work but absolutely does. "Reincarnation" opens with this vocal punch that sets the whole tone.
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"Beastie Game" goes full idol concert energy, like you're in Shibuya at midnight. And then "Fire Emblem: Opera of Light" takes the FE legacy and dresses it up in stage lights. The best sound collection cherry-picks the vocal tracks and the combat heat.
"Dream Catcher" and "Give Me!" are pure adrenaline pop. There's a confidence to this soundtrack that comes from fully committing to the idol RPG bit. If you want Switch-era J-pop that also makes you want to grind dungeons, start here.