546 - bombShield(int a, int script)

Sets the bomb invulnerability flag (a=0 false, a=1 true), the caller's ANM script will change to script when a bomb is active.

611 - etEx(int etId, int async, int type, float a, float b)

Adds bullet transformation to bullet manager etId, Transformation of flag type determines the specific behaviour of the bullet. Documentation can be found here.

BulletEffectType-67108864 - etExDelay(string et, string isAsync, string time)

Hide the bullet for time frames. During this time, it will not move, will be invisible and won't have a hitbox. If used as a first transformation, can be used to delay when the bullet actually appears.

6 - isDelayedSpawn

While this flag is set, the bullet will be invisible and not have a hitbox. This flag is cleared once the delay timer ends.

4 - short_timer

Integer value between -1 and 15 inclusive (by default -1). If non-negative, shooters using short_timer shoot their bullets and timer increments by 1 per frame until 15 is reached. Once 15, timer reset to -1 or 0 depending on Z key state.

5 - long_timer

Integer value between -1 and 120 inclusive (by default -1). If non-negative, shooters using long_timer shoot their bullets and timer increments by 1 per frame until 120 is reached. Once 120, timer reset to -1 or 0 depending on Z key state.

503 - flagClear(int n)

Clears flag(s) according to n. Refer to the flag table here for exact values.

91 - floatTime(int slot, float var, int time, int mode, float start, float final)

In time frames using mode mode, variable var changes from start to final. slot is used to set the slot to be used by this ins, every enemy has 8 slots.

-9980 - F1

Local float variable, inherited by spawned enemies.

-9984 - I1

Local integer variable, inherited by spawned enemies.

-9989 - ANGLE_PLAYER

Angle from the enemy to the player.

-9962 - BOSS_Y

Final Y position of the boss.

-9990 - PLAYER_Y

Player's Y position.

-9963 - BOSS_X

Final X position of the boss.

-9991 - PLAYER_X

Player's X position.

81 - circlePos(float varX, float varY, float angle, float radius)

Performs following operation: varX = cos(angle) * radius and varY = cos(angle) * radius

-9981 - F0

Local float variable, inherited by spawned enemies.

300 - enmCreate(string sub, float x, float y, int hp, int score, int item)

Creates an enemy using subroutine sub at coordinates (x, y) (relative to position of the parent), health of created enemy is hp, score bonus is score and item drop is item.

601 - etOn(int etId)

Shoots bullet(s) using properties from bullet manager etId.

23 - wait(int time)

Stops sub execution for time frames.

1 - delete()

Returns to the top of current call stack.

2 - GAME_SPEED

The value controls by how much faster the game speed is run. This variable is often set to a number between 0 and 1. This value is often changed when a (final) boss dies or when a photo is taken. Its default value is 1.

-9985 - I0

Local integer variable, inherited by spawned enemies.

-9983 - I2

Local integer variable, inherited by spawned enemies.

-9982 - I3

Local integer variable, inherited by spawned enemies.

-9954 - ENEMY_HP

Enemy's current HP.

3 - goheiExists

A flag that determines if a gohei exists on-screen or not. Flag is set to true by active gohei. Flag is set to false if gohei goes off-screen or is despawning.

-9926 - GI0

Global integer value. Value is initialised to 0 on stage load but not on stage reset.

-9925 - GI1

Global integer value. Value is initialised to 0 on stage load but not on stage reset.

-9924 - GI2

Global integer value. Value is initialised to 0 on stage load but not on stage reset.

-9923 - GI3

Global integer value. Value is initialised to 0 on stage load but not on stage reset.

17 - distortion(int a)

Triggers distortion effects on the edge of the screen. The meaning of the argument is not entirely clear. SA uses a value of 1 to create distortion at the bottom of the screen, while UFO uses this same value to create distortion at the top.

539 - spell3(int id, int timeRate, int unused, string name)

Declares a spell-card with id id and name unused. The ID passed to the spell-creating function is id + difficulty - 2 (with easy=0, normal=1, ..., overdrive=5). timeRate determines how much time the spell circle takes to shrink (in frames), as well as how fast the spell bonus decreases.

514 - setInterrupt(int slot, int hp, int duration, string subroutine)

Sets an interrupt on slot slot. Once caller's HP reaches hp or duration frames have passed since this instruction was called, the caller will terminate all subroutines it's currently running and execute subroutine subroutine.

270 - enmCreate270(string sub, float x, float y, int hp, int score, int item)

Creates an enemy using subroutine sub at coordinates (x, y) (relative to position of the stage background camera), health of created enemy is hp, score bonus is score and item drop is item.

Unintended Last Spell Trigger

Specifications

  • Versions: 1.00 - 1.00a - 1.00b - 1.00c - 1.00d
  • Difficulty: Easy - Normal - Hard - Lunatic - Extra - Last Word
  • Mode: Main game - Practice mode - Spell Practice
  • Shottype: Border Team - Magic Team - Ghost Team - Scarlet Team - Reimu - Yukari - Marisa - Alice - Youmu - Yuyuko - Sakuya - Remilia

What happens

It is possible to trigger the Last Spell despite not meeting the required Time. It is possible to trigger this on all spell-cards besides on Mokou due to the Time requirement being too low. The game runs normally when the Last Spell is triggered and nothing special happens.

How it happens

This mostly happens accidentally and rarely. This bug is easier to replicate on patterns with a higher bullet density in which a lot of bullets are cancelled, meaning it is best done on higher difficulties. There must be a lot of bullets on-screen right before Last Spell is triggered and player must be right below Time threshold.

Why it happens

It is possible for a player to be just below the Time requirement the attack before the Last Spell. If the player captures the attack before the LS, then the player may have just enough Time to meet the Time requirement. When the attack before the LS is captured, the bullets on-screen are turned into Time items. Those Time items take some time to get to the player, which is an issue. You want to make sure that once the Time items are all collected, the player is able to do the Last Spell.

The moment at which the game checks if you meet the requirement is done right as you capture the spell before the LS.
Game doesn't look at Time you have.
Game looks at Time you have + bullets on-screen.
Bullet on-screen would be cancelled and turned into Time.
If sum >= requirement, then LS is triggered.
However, some bullets are almost off-screen. Those bullets will then turn into Time. That Time is too far off-screen so player doesn't pick it up.
This means it's possible for Time to be below requirement.

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