Made more enemies, easier to kill, more slashy. You get passive health regen, health orbs. Little key bindings tooltip.

level/scripts/health_orb.gd

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+extends Area3D
+class_name HealthOrb
+
+## Floating pickup that restores health when a player walks into it.
+## Server-authoritative pickup; the bob/spin visuals run locally on every peer.
+
+@export var heal_amount: float = 25.0
+@export var bob_height: float = 0.3
+@export var bob_speed: float = 2.0
+@export var spin_speed: float = 2.0
+
+var orb_id: int = -1            # Assigned by Level when spawned
+var _base_y: float = 0.0
+var _time: float = 0.0
+var _collected: bool = false
+@onready var _mesh: Node3D = get_node_or_null("Mesh")
+
+func _ready():
+	_base_y = position.y
+	_time = randf() * TAU  # Random phase so multiple orbs don't bob in unison
+
+	# Detect players (physics layer 1) without colliding with anything
+	collision_layer = 0
+	collision_mask = 1
+
+	# Only the server resolves pickups
+	if multiplayer.is_server():
+		body_entered.connect(_on_body_entered)
+
+func _process(delta):
+	_time += delta
+	position.y = _base_y + sin(_time * bob_speed) * bob_height
+	if _mesh:
+		_mesh.rotate_y(spin_speed * delta)
+
+func _on_body_entered(body: Node3D):
+	if _collected or not multiplayer.is_server():
+		return
+	if not (body is Character) or body.is_dead:
+		return
+	# Leave the orb in place if the player is already at full health
+	if body.current_health >= body.max_health:
+		return
+
+	_collected = true
+	body.heal(heal_amount)
+
+	# Remove the orb from every client via the level's centralized system
+	var level = get_tree().get_current_scene()
+	if level and level.has_method("remove_health_orb"):
+		level.remove_health_orb(orb_id)