diff --git a/assets/Tutorial_shield.jpeg.import b/assets/Tutorial_shield.jpeg.import
index 2721869..0434bc8 100644
--- a/assets/Tutorial_shield.jpeg.import
+++ b/assets/Tutorial_shield.jpeg.import
@@ -3,15 +3,15 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://baeea1yfs0cnn"
-path="res://.godot/imported/Tutorial_Shield.jpeg-6b96e6b9716aced42153397e827ce868.ctex"
+path="res://.godot/imported/Tutorial_shield.jpeg-d9b563c9ca34dc1a19e82a0ec964c1b9.ctex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
-source_file="res://assets/Tutorial_Shield.jpeg"
-dest_files=["res://.godot/imported/Tutorial_Shield.jpeg-6b96e6b9716aced42153397e827ce868.ctex"]
+source_file="res://assets/Tutorial_shield.jpeg"
+dest_files=["res://.godot/imported/Tutorial_shield.jpeg-d9b563c9ca34dc1a19e82a0ec964c1b9.ctex"]
 
 [params]
 
diff --git a/scripts/GameSettings.gd b/scripts/GameSettings.gd
new file mode 100644
index 0000000..7cdbd57
--- /dev/null
+++ b/scripts/GameSettings.gd
@@ -0,0 +1,5 @@
+class_name GameSettings
+
+## "immortal"  — no damage, tier-based kick force
+## "survival"  — takes damage, fixed kick force
+static var difficulty: String = "immortal"
diff --git a/scripts/GameSettings.gd.uid b/scripts/GameSettings.gd.uid
new file mode 100644
index 0000000..d8c41b2
--- /dev/null
+++ b/scripts/GameSettings.gd.uid
@@ -0,0 +1 @@
+uid://deu62njwuhjd3
diff --git a/scripts/MainMenu.gd b/scripts/MainMenu.gd
index 1c80668..56a450b 100644
--- a/scripts/MainMenu.gd
+++ b/scripts/MainMenu.gd
@@ -3,6 +3,7 @@ extends Control
 static var volume: float = 100.0
 
 var settings_panel: Panel
+var difficulty_panel: Panel
 
 func _ready() -> void:
 	process_mode = Node.PROCESS_MODE_ALWAYS
@@ -46,17 +47,57 @@ func _build_ui() -> void:
 	vbox.add_child(_btn("Выход", _on_exit))
 
 	_build_settings_panel()
+	_build_difficulty_panel()
 
 func _btn(text: String, cb: Callable) -> Button:
 	var b := Button.new()
 	b.text = text
 	b.custom_minimum_size = Vector2(220, 54)
 	b.add_theme_font_size_override("font_size", 20)
+	for state in ["normal", "hover", "pressed", "focus", "disabled"]:
+		var sb := StyleBoxFlat.new()
+		sb.bg_color = Color(0.18, 0.13, 0.30) if state == "normal" else (
+			Color(0.28, 0.20, 0.46) if state == "hover" else
+			Color(0.12, 0.09, 0.22))
+		sb.border_width_left   = 1
+		sb.border_width_right  = 1
+		sb.border_width_top    = 1
+		sb.border_width_bottom = 1
+		sb.border_color = Color(0.50, 0.38, 0.75)
+		sb.corner_radius_top_left     = 6
+		sb.corner_radius_top_right    = 6
+		sb.corner_radius_bottom_left  = 6
+		sb.corner_radius_bottom_right = 6
+		sb.content_margin_left   = 20
+		sb.content_margin_right  = 20
+		sb.content_margin_top    = 12
+		sb.content_margin_bottom = 12
+		b.add_theme_stylebox_override(state, sb)
 	b.connect("pressed", cb)
 	return b
 
+static func _make_opaque_panel() -> Panel:
+	var p := Panel.new()
+	var sb := StyleBoxFlat.new()
+	sb.bg_color = Color(0.08, 0.06, 0.14)
+	sb.border_width_left   = 2
+	sb.border_width_right  = 2
+	sb.border_width_top    = 2
+	sb.border_width_bottom = 2
+	sb.border_color = Color(0.35, 0.28, 0.55)
+	sb.corner_radius_top_left     = 8
+	sb.corner_radius_top_right    = 8
+	sb.corner_radius_bottom_left  = 8
+	sb.corner_radius_bottom_right = 8
+	sb.content_margin_left   = 24
+	sb.content_margin_right  = 24
+	sb.content_margin_top    = 20
+	sb.content_margin_bottom = 20
+	p.add_theme_stylebox_override("panel", sb)
+	return p
+
 func _build_settings_panel() -> void:
-	settings_panel = Panel.new()
+	settings_panel = _make_opaque_panel()
 	settings_panel.visible = false
 	settings_panel.anchor_left   = 0.5
 	settings_panel.anchor_right  = 0.5
@@ -105,8 +146,62 @@ func _apply_volume(v: float) -> void:
 	var db := linear_to_db(v / 100.0) if v > 0.0 else -80.0
 	AudioServer.set_bus_volume_db(0, db)
 
+func _build_difficulty_panel() -> void:
+	difficulty_panel = _make_opaque_panel()
+	difficulty_panel.visible = false
+	difficulty_panel.anchor_left   = 0.5
+	difficulty_panel.anchor_right  = 0.5
+	difficulty_panel.anchor_top    = 0.5
+	difficulty_panel.anchor_bottom = 0.5
+	difficulty_panel.offset_left   = -230
+	difficulty_panel.offset_right  =  230
+	difficulty_panel.offset_top    = -160
+	difficulty_panel.offset_bottom =  160
+	add_child(difficulty_panel)
+
+	var margin := MarginContainer.new()
+	margin.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
+	margin.add_theme_constant_override("margin_left",   24)
+	margin.add_theme_constant_override("margin_right",  24)
+	margin.add_theme_constant_override("margin_top",    20)
+	margin.add_theme_constant_override("margin_bottom", 20)
+	difficulty_panel.add_child(margin)
+
+	var vbox := VBoxContainer.new()
+	vbox.alignment = BoxContainer.ALIGNMENT_CENTER
+	vbox.add_theme_constant_override("separation", 16)
+	margin.add_child(vbox)
+
+	var title := Label.new()
+	title.text = "Выберите сложность"
+	title.add_theme_font_size_override("font_size", 26)
+	title.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
+	vbox.add_child(title)
+
+	var immortal_btn := Button.new()
+	immortal_btn.text = "Бессмертный\nНет урона · тир пинков от мелких врагов"
+	immortal_btn.custom_minimum_size = Vector2(380, 72)
+	immortal_btn.add_theme_font_size_override("font_size", 18)
+	immortal_btn.connect("pressed", func() -> void:
+		GameSettings.difficulty = "immortal"
+		get_tree().change_scene_to_file("res://scenes/Main.tscn")
+	)
+	vbox.add_child(immortal_btn)
+
+	var survival_btn := Button.new()
+	survival_btn.text = "Выживание\nПолучаешь урон · фиксированная сила пинка"
+	survival_btn.custom_minimum_size = Vector2(380, 72)
+	survival_btn.add_theme_font_size_override("font_size", 18)
+	survival_btn.connect("pressed", func() -> void:
+		GameSettings.difficulty = "survival"
+		get_tree().change_scene_to_file("res://scenes/Main.tscn")
+	)
+	vbox.add_child(survival_btn)
+
+	vbox.add_child(_btn("Назад", func(): difficulty_panel.visible = false))
+
 func _on_play() -> void:
-	get_tree().change_scene_to_file("res://scenes/Main.tscn")
+	difficulty_panel.visible = true
 
 func _on_settings() -> void:
 	settings_panel.visible = true
diff --git a/scripts/Player.gd b/scripts/Player.gd
index a1e3d59..a0b3ca5 100644
--- a/scripts/Player.gd
+++ b/scripts/Player.gd
@@ -180,7 +180,9 @@ func _do_kick() -> void:
 	var obj_toughness: int = best.get("toughness_tier") if best.get("toughness_tier") != null else 0
 	var diff_tier := kick_tier - obj_toughness
 	var force: float
-	if diff_tier < 0:
+	if GameSettings.difficulty == "survival":
+		force = 50.0
+	elif diff_tier < 0:
 		force = 15.0
 	elif diff_tier == 0:
 		force = 50.0
@@ -229,6 +231,8 @@ func receive_kick(direction: Vector3, force: float) -> void:
 	_squish_effect()
 
 func take_damage(amount: int, attacker_toughness: int = 0) -> void:
+	if GameSettings.difficulty == "immortal":
+		return
 	if not is_alive or invincible_timer > 0.0:
 		return
 	invincible_timer = IFRAMES_DURATION