- "Uzuki's strangely motivated Harrier partner. Don't let the incongruity fool you: he's just as savage as ever! He launches a powerful special attack when his HP is low, so stay on your toes!"
- — Noise Report
Koki Kariya (Expert Mode) is a Boss in The World Ends with You -Final Remix-, fought in A New Day.
Strategy[]
The fight with Uzuki and Kariya in Expert Mode takes place under Sync Rave and Curse conditions. This means that Neku's HP is constantly depleting, and his Sync Rate with Beat will rise more quickly. Because of this, Fusions can be used rapidly, serving as an effective means of both HP recovery and damage to the enemy. Beyond the conditions, the fight plays out in a similar fashion to the Berserk fight with the Harriers, with Uzuki initially fighting alone, then Kariya, and then both. Neku should take care to evade their attacks and focus on achieving Cross Combos with Beat. When their HP gets low enough, they may use their own Fusion; if Neku cannot defeat them before it launches, he should attempt to heal immediately.