Hibana is a government-employed ninja, out to assassinate the members of the Nakatomi Corporation. In a near-future Tokyo, Nakatomi has unleashed a series of demons upon the city, and Hibana must eliminate both them and Nakatomi's rival ninja.
Nightshade is notoriously difficult, mostly due to its later levels requiring increasingly high levels of precision and timing.
This game contains examples of:
- Action Girl: Hibana. She actually has a few fans who've never played the game, owing largely to her striking visual design.
- Amen Break: Several tracks have sampled the Amen Break.
- And Your Reward Is Clothes: Like many PlayStation 2 era female characters, Hibana has a couple of risque outfits you can unlock after completing the game.
- Bishōnen Line: Kurohagane gets bulkier and bulkier in each appearance until his last one, where his "armour" explodes, turning him into a slick swordsman who looks, for all accounts, human. He doesn't even look like a robot except for his helmet.
- Blow You Away: Kazaguruma
- The Cameo: Hotsuma, Moritsune, Kagari, and Hiruko appear in the intro in flashbacks. Hotsuma himself is an unlockable character.
- Catchphrase: "Today's just isn't my day" for Hibana.
- Compressed Hair: Hibana has long hair and keeps it underneath a skin-tight helmet.
- Death Seeker: Onibi wants Hibana to kill him.
- Dueling Games: Came out a month before the Ninja Gaiden revival and was promptly forgotten after the latter game's release.
- Flash Step: She's a ninja. What do you want?
- Highly Visible Ninja: Hibana wears bright white and kills everyone she sees. Her outfit could be described as a cross between the Soul Series ninja character Taki and Joe Musashi of the original games.
- Karmic Death: Jimushi betrays and blows up Kurohagane (With Hisui's help), taking Akujiki from him. Come the end of Jimushi's boss fight, Kurohagane steals back Akujiki and then kills Jimushi as payback.
- Making a Splash: Hisui.
- Mega-Corp: Nakatomi in Nightshade have gone from simply having a preposterously laid-out factory used by Hiruko to being a full-on evil company with their own B-2 Spirit bomber, F-117 Nighthawks and ballistic missile submarine.
- Multi-Melee Master: Hibana has dual short blades and singular long blade.
- Nintendo Hard: The combat's comparatively forgiving, but the platforming is what stops most players in their tracks. To elaborate, you will be required to navigate between platforms using enemies as a bridge with a combination of Locked-On Stealth Dashes and Homing Kicks. Keep in mind that this often takes place around environmental hazards or pits. Something like the sections in the Sonic Adventure games with a set of midair enemies to Homing Attack, but done more manually, so to speak.
- No Celebrities Were Harmed: Hibana strongly resembles actress Chiaki Kuriyama, a move likely inspired by the fact that Kill Bill Vol. 1 was the hottest action movie on Earth at the time of the game's development (and her rival Hisui vaguely resembles fellow Battle Royale co-star Kou Shibasaki, who was the first choice to portray Kuriyama's character, Gogo Yubari).
- Parasol of Pain: Hisui wields one in combat.
- Playing with Fire: Onibi's shtick, via fireworks and flame attacks.
- Rule of Cool: The short cutscene at the end of every Tate combo, although sometimes it does give the player a useful little break.
- Scarf of Asskicking: They even tack one on Hibana — although hers isn't quite as epic, it does leave a rather cool "ghost trail" effect.
- We Can Rule Together: Kurohagane offers this to Hibana, asking that she be his, and Akujiki's, master. She refuses.
- You Are Already Dead: One of the primary ways to take down enemies throughout the game is the "Tate" system, where you run around stunning every enemy in a room so they all fall over dead at once.