Add an explicit objective to talk to the sarc. Completing that objective gives the first data disk objective.

player_2d.gd

@@ -24,6 +24,7 @@ var objectives = {}
 func _ready() -> void:
 	spawn_point = position
 	DisplayServer.window_set_title("JUMPS EQUALS JUMPS")
+	give_objective("sarc", 0, "Open the Sarcophagus")
 	
 func refresh_dash(new_dashes):
 	if new_dashes: