#glitch12

In Undefined Fantastic Object, Byakuren’s spellcard 「聖尼公のエア巻物」 Amagimi Hijiri's Air Scroll does not exist in Easy mode. However, the number of stars in Easy has not been set accordingly and jumps from two directly to zero when skipping that spellcard.

In comparison, please look at Aya’s stars in Mountain of Faith or Yuyuko’s stars in Ten Desires. They are updated accordingly to the number of healthbars from their respective difficulties.

Aya (Easy vs Normal)

Yuyuko (Normal vs Hard)

Murasa's survival spellcard appears only on Normal, Hard and Lunatic difficulties. On these difficulties, after the previous spellcard ends, you will get a timer that will count from 43 downwards. It counts like this for few seconds then it resets back to 43 seconds when the survival spellcard is triggered.

Similarly to Mountain of Faith and Subterranean Animism, in Undefined Fantastic Object if you fastforward through the dialogue you are able to see a different number of seconds briefly on the timer, before the actual countdown for the nonspell begins.

The second when you beat the midboss will be shown for a short moment at the beginning of the boss’ first nonspell, before the timer is changed to that of the actual boss’ nonspell.

It is not possible to trigger this for Murasa and Byakuren as the midbosses from stage 4 and 6 do not have any timer (or even if they have and it's hidden, you pretty much timeout that midboss as you cannot kill it).

In Subterranean Animism, when 秘法「九字刺し」 Esoterica "Nine Syllable Stabs" ends, the timer will start counting from 59 downwards. However, it resets back to 59 once 奇跡「ミラクルフルーツ」 Miracle "Miracle Fruit" begins. And when 奇跡「ミラクルフルーツ」 Miracle "Miracle Fruit" ends, the timer will again count from 59 downwards and will reset once 神徳「五穀豊穣ライスシャワー」 Divine Virtue "Bumper Crop Rice Shower" starts.

These details can be easily missed as it's only noticeable in the miliseconds part. In Undefined Fantastic Object this change is more visible.

In Undefined Fantastic Object, when 傘符「大粒の涙雨」 Umbrella Sign "Lightly Falling Large Raindrops" ends, the timer will start counting from 59 downwards. It counts until 57 then it resets to 59 again when 驚雨「ゲリラ台風」 Surprising Rain "Guerrilla Typhoon" begins.

And when 驚雨「ゲリラ台風」 Surprising Rain "Guerrilla Typhoon" ends, the timer will start counting again from 59 until 57 and will reset back to 59 when 後光「からかさ驚きフラッシュ」 Halo "Karakasa Surprising Flash" begins.

In Undefined Fantastic Object, if you bomb with Reimu A right at the end of the last spellcard on stages 1~5 you can glitch the beginning of the next stage. The bomb will “still be active” although you won’t see it, for a short period of time at the beginning of the next stage and will damage your enemies without you shooting them.

This glitch was present in the trial versions as well.