diff --git a/Half-Life Source.md b/Half-Life Source.md
index 92e3e7c..cbbb48b 100644
--- a/Half-Life Source.md	
+++ b/Half-Life Source.md	
@@ -30,6 +30,18 @@ There was an optimization done to the PVS during Episode 1's development that ma
 
 The Apache's hitbox doesn't detect any of the unique hitboxes in the model. To boot, the hitbox is now a tiny square in the center of the Apache.
 
+## Bug: Barnacle's tongue does not calculate distance to floor correctly.
+
+This may be related to the EP1 PVS optimization.
+
+## Bug: Sitting Scientists can float.
+
+Ditto
+
+## Bug: Apache is floating in the tram ride.
+
+Ditto
+
 ## Bug: Leak in C2A5C
 
 There's a leak in C2A5C that causes the 3D Skybox to render inconsistently.