add final boss to level select, make bullets hurt famira

objects/enemy/2083_bullet.tscn

@@ -0,0 +1,40 @@
+[gd_scene load_steps=8 format=2]
+
+[ext_resource path="res://graphics/enemy/stg_bullet.png" type="Texture" id=1]
+[ext_resource path="res://objects/enemy/2083_bullet.gd" type="Script" id=2]
+
+[sub_resource type="RectangleShape2D" id=5]
+extents = Vector2( 3, 3 )
+
+[sub_resource type="AtlasTexture" id=1]
+atlas = ExtResource( 1 )
+region = Rect2( 0, 0, 6, 6 )
+
+[sub_resource type="AtlasTexture" id=2]
+atlas = ExtResource( 1 )
+region = Rect2( 6, 0, 6, 6 )
+
+[sub_resource type="AtlasTexture" id=3]
+atlas = ExtResource( 1 )
+region = Rect2( 12, 0, 6, 6 )
+
+[sub_resource type="SpriteFrames" id=4]
+animations = [ {
+"frames": [ SubResource( 1 ), SubResource( 2 ), SubResource( 3 ) ],
+"loop": true,
+"name": "default",
+"speed": 15.0
+} ]
+
+[node name="2083Bullet" type="Area2D" groups=["hurt_famira"]]
+collision_layer = 128
+collision_mask = 128
+monitoring = false
+script = ExtResource( 2 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource( 5 )
+
+[node name="AnimatedSprite" type="AnimatedSprite" parent="."]
+frames = SubResource( 4 )
+playing = true