diff --git a/scripts/anthill.gd b/scripts/anthill.gd
index 021fd68..f56b656 100644
--- a/scripts/anthill.gd
+++ b/scripts/anthill.gd
@@ -13,6 +13,12 @@ var ant_nitwit := preload("res://scenes/units/ant_nitwit.tscn")
 @onready var nitwits_holder: Node = $/root/World/Units/Nitwits
 
 
+func _ready() -> void:
+	assert(ui_origin != null, "ui_origin missing!")
+	assert(nitwits_holder != null, "nitwits_holder missing!")
+	super._ready()
+
+
 ## Returns amount of honeydew that did not fit
 func put_honeydew(amount: int) -> int:
 	var new_honeydew_amount := honeydew + amount
diff --git a/scripts/globals/ui_manager.gd b/scripts/globals/ui_manager.gd
index 412fa4a..f6cfeaf 100644
--- a/scripts/globals/ui_manager.gd
+++ b/scripts/globals/ui_manager.gd
@@ -1,4 +1,7 @@
 extends Node
 
+@onready var anthill_info: AnthillInfo = $/root/World/UI/AnthillInfo
 
-@onready var anthill_info: AnthillInfo = $/root/World/UI/AnthillInfo
\ No newline at end of file
+
+func _ready() -> void:
+	assert(anthill_info != null, "anthill_info missing!")
diff --git a/scripts/ui/anthill_info.gd b/scripts/ui/anthill_info.gd
index b72a318..10e8947 100644
--- a/scripts/ui/anthill_info.gd
+++ b/scripts/ui/anthill_info.gd
@@ -14,6 +14,7 @@ func _ready() -> void:
 	assert(label != null, "label missing!")
 	assert(nitwit_button != null, "nitwit_button missing!")
 	assert(add_one_button != null, "add_one_button missing!")
+	assert(add_five_button != null, "add_five_button missing!")
 	assert(counter != null, "counter missing!")
 	super._ready()
 	nitwit_button.pressed.connect(_on_nitwit_button_pressed)
diff --git a/scripts/units/controlled_unit.gd b/scripts/units/controlled_unit.gd
index d2ceaa7..349afb1 100644
--- a/scripts/units/controlled_unit.gd
+++ b/scripts/units/controlled_unit.gd
@@ -26,7 +26,6 @@ func _ready() -> void:
 	assert(camera != null, "camera missing!")
 	assert(selection_sprite != null, "selection_sprite missing!")
 
-	set_selected(false)
 	if spawn_pos != null and spawn_pos != Vector3.ZERO:
 		global_position = spawn_pos
 	super._ready()
diff --git a/scripts/units/unit.gd b/scripts/units/unit.gd
index 30b90cc..08b27e2 100644
--- a/scripts/units/unit.gd
+++ b/scripts/units/unit.gd
@@ -20,7 +20,6 @@ var wandering_center: Vector3 = Vector3.ZERO
 
 
 func _ready() -> void:
-	assert(hover_sprite != null, "hover_sprite missing!")
 	assert(nav_agent != null, "nav_agent missing!")
 	assert(animation_tree != null, "animation_tree missing!")
 	assert(visibility_notifier != null, "visibility_notifier missing!")