it's something

#“Ś•ű’e–‹•—[Single]
#ScriptVersion[3]
#Title["10"]
#Text["10"]
#Background["script/default_system/Default_Background_IceMountain.txt"]

#include"script/default_system/Default_ShotConst.txt"

let objEnemy;
let objPlayer;
let frame = 0;

@Event{
	alternative(GetEventType())
	case(EV_REQUEST_LIFE){
		SetScriptResult(1500);
	}
}

@Initialize{
	objPlayer = GetPlayerObjectID();

	objEnemy = ObjEnemy_Create(OBJ_ENEMY_BOSS);
	ObjEnemy_Regist(objEnemy);

	let imgExRumia = GetCurrentScriptDirectory ~ "ExRumia.png";
	ObjPrim_SetTexture(objEnemy, imgExRumia);
	ObjSprite2D_SetSourceRect(objEnemy, 64, 1, 127, 64);
	ObjSprite2D_SetDestCenter(objEnemy);

	let cx = GetStgFrameWidth() / 2;
	ObjMove_SetDestAtFrame(objEnemy, cx, 120, 60);

	let difficult=2;

	PatternX();
	PatternY();
	Shield();
}

@MainLoop{
	let ex = ObjMove_GetX(objEnemy);
	let ey = ObjMove_GetY(objEnemy);
	ObjEnemy_SetIntersectionCircleToShot(objEnemy, ex, ey, 32);
	ObjEnemy_SetIntersectionCircleToPlayer(objEnemy, ex, ey, 24);

	frame++;

	if(ObjEnemy_GetInfo(objEnemy, INFO_LIFE) <= 0){
		Obj_Delete(objEnemy);
		CloseScript(GetOwnScriptID());
		return;
	}
	yield;
}

function wait(n){
	loop(n){yield;}
}

task PatternX(){
	wait(60);
	loop{
		let random1=rand(70, 110);
		let random2=rand(81, 88);
		let random3=rand(80, 100);
		let random4=rand(85, 95);
		let wallx=0;
		while(wallx<=GetStgFrameWidth){
			let obj=CreateShotA1(wallx, 0, 2, random1, random2, 15);
			ObjMove_AddPatternA2(obj, 60, NO_CHANGE, NO_CHANGE, 0.02, 0, 5);
			ObjMove_AddPatternA2(obj, 120, NO_CHANGE, random3, 0.02, 0, 5);
			ObjMove_AddPatternA2(obj, 180, NO_CHANGE, random4, 0.02, 0, 5);
			wallx+=GetStgFrameWidth/Meiling;
			if(difficult==1){Meiling==2;}
			if(difficult==2){Meiling==4;}
			if(difficult==3){Meiling==6;}
			if(difficult==4){Meiling==9;}
		}
		wait(10);
	}
}

task PatternY(){
	wait(60);
	loop{
		let ex = ObjMove_GetX(objEnemy);
		let ey = ObjMove_GetY(objEnemy);

		let random=rand(-30, +30);
		let angle=0+random;
		while(angle<=360+random){
			CreateShotA1(ex, ey, 2, angle, rand(9, 16), 15);
			angle+=60
		}
		wait(Patchy);
		if(difficult==1){Patchy==60;}
		if(difficult==2){Patchy==30;}
		if(difficult==3){Patchy==25;}
		if(difficult==4){Patchy==20;}
	}
}

task Shield(){
	ObjEnemy_SetDamageRate(objEnemy, 0, 0);
	wait(60);
	ObjEnemy_SetDamageRate(objEnemy, 100, 100);
}