Hidden cave
Though it's not really a cheat but it's awesome. On blood gulch if you rappidly shoot the boulder on the cliff on the wall a certain amount of times with a plasma gun it will explode. When it explodes you should see a silver platform where the rock was. If you throw a plasma grenade on it it will blow up allowing you to go in. But theres no way out so have fun while your there. If you follow the cave it will lead you to a dark room. If you go in youll see a dead guy slottered hanging up on the wall. Its cool. P.s. If id doesnt work let me know and ill try it again. Have fun!
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