diff --git a/src/endstone_test/event_listener.py b/src/endstone_test/event_listener.py
index c2b3ba8..61b4e5d 100644
--- a/src/endstone_test/event_listener.py
+++ b/src/endstone_test/event_listener.py
@@ -1,6 +1,5 @@
 import datetime
 from functools import partial
-from uuid import UUID
 
 from endstone import ColorFormat, Server
 from endstone.event import event_handler, PlayerJoinEvent
@@ -13,16 +12,16 @@ def __init__(self, plugin: Plugin):
 
     @event_handler
     def on_player_join(self, event: PlayerJoinEvent) -> None:
-        def send_welcome_message(player_name: str, player_id: UUID) -> None:
+        def send_welcome_message(player_name: str) -> None:
             self.server.broadcast_message(ColorFormat.YELLOW + f"{player_name} joined the game.")
 
         self.server.scheduler.run_task_later(
-            self._plugin, partial(send_welcome_message, event.player.name, event.player.unique_id), delay=20
+            self._plugin, partial(send_welcome_message, event.player.name), delay=20
         )
 
         assert event.player in self.server.online_players
         assert self.server.get_player(event.player.name) is event.player
-        # assert self.server.get_player(event.player.unique_id) is event.player # TODO(fixme): this will crash
+        assert self.server.get_player(event.player.unique_id) is event.player
 
         self._plugin.logger.info("===========================")
         self._plugin.logger.info(f"Name: {event.player.name}")
diff --git a/src/endstone_test/plugin.py b/src/endstone_test/plugin.py
index cdf21ca..dd836ae 100644
--- a/src/endstone_test/plugin.py
+++ b/src/endstone_test/plugin.py
@@ -1,3 +1,6 @@
+import datetime
+import uuid
+
 from endstone import __minecraft_version__
 from endstone.plugin import Plugin
 
@@ -42,8 +45,10 @@ def on_enable(self) -> None:
         self.server.max_players = 100
         assert self.server.max_players == 100
 
-        self.server.broadcast_message("Hello!")
+        assert self.server.get_player("non-existent") is None
+        assert self.server.get_player(uuid.uuid4()) is None
 
+        self.server.broadcast_message("Hello!")
         self.server.scheduler.run_task_timer(self, self.send_debug_message, delay=0, period=10)
 
     def on_disable(self) -> None:
@@ -52,7 +57,7 @@ def on_disable(self) -> None:
     def send_debug_message(self):
         for player in self.server.online_players:
             player.send_tip(
-                f"Level: {player.level.name}, Time: {player.level.time}\n"
+                f"Level: {player.level.name}, Time: {player.level.time}, Ping: {player.ping / datetime.timedelta(milliseconds=1)}\n"
                 f"Location: {player.location}\n"
                 f"Velocity: {player.velocity}\n"
                 f"Dimension: {player.location.dimension.name}\n"