- Action Girl: Sia herself.
- Cool Sword: It's jade. Need we say more?
- Development Hell: A sequel was planned in 2003, then got cancelled and is now trapped there forever.
- Idle Animation
- Multiple Endings: The true ending is only unlocked after getting a perfect score on all stages, unlocking the bonus stages, and then getting a perfect score on those.
- Nintendo Hard: A short health bar, enemies everywhere, and glitches in vital places.
- No Ending: You beat the last boss, he changes into a massive demon with wings, and...he flies away. If you did not unlock the true ending, the game ends and the credits roll.
- One-Winged Angel
- Transformation Sequence: A short one, used when Sia transitions from normal to what's usually called her 'sasquatch' form.