Bleach:Zanpakutou Senshi is a totally free Total Conversion of Half-Life 1. It´s based on the japanese hit Anime Bleach.
... Or so I though. Apparently you also have to tell it to rotate its collision box. Sigh...
This actually becomes an issue unless HL has a function for rotation, as the bounding box would become diamond shaped to cover the entire model. That would lead to a collision ahead of the model.