Undefined Fantastic Object/Characters
In Undefined Fantastic Object, there are three playable characters to choose from, each with two shot types.
Shrine Maiden of Paradise
The shrine maiden of the Hakurei Shrine launches off to the sky in search of treasure... or, perhaps, simply to exterminate the youkai causing the ruckus.
Curiosity grips the ordinary magician as the strange flying object soars off in the sky. Perhaps there is some monetary gain at hand?
Newbie Goddess of the Mountain
Directed by the gods of her shrine, this miracle worker heads into the air to chase the flying object. It's her exciting first adventure in Gensokyo.
The Little Dowser General
A mouse youkai who seems to be looking for something important.
The Cheery Forgotten Umbrella
An umbrella youkai who approaches the player to try and scare her out of boredom.
The Ghost Left From the Shipwreck Accident
The spirit of the captain of the palanquin ship. She is aiding the others in trying to revive Byakuren Hijiri.
Disciple of Bishamonten
The tiger youkai and Nazrin's superior. She is leading the effort to unseal Byakuren Hijiri.
The Sealed Great Magician
The living saint, brought back through the player's efforts. A former human friend to all humans and youkai.
The Unidentified Fantastic Flying Girl
A strange, unknown youkai who has interfered with your quest time and time again. Is she an alien?
- UFO is the first Windows game (excluding the spinoffs) in the series to have no midboss-only characters.
- This is the only game where every character art is holding (or has) an inanimate object.
- Almost every boss has a unique item in their danmaku: Nazrin's pendulums, Kogasa's umbrellas, Unzan, Murasa's anchors and Nue's UFOs.