Crouch and walk through it it doesn't move, you just walk right through it and pick up a secret backpack. It is off to the right a little bit. In that area, there is a small building. Persia Master: Complete the Persia episode in single player or cooperative. I'm pretty sure the teleportation only works once, so don't do it again.
Run behind the pyramid and pick up the health. There is an oasis out there with some rocket ammo. Jump in the pool on the left and swim around the middle of the left wall. Serious Run: Complete the game in single player by beating estimated time on each level. When you get inside the building, you'll see a statue ahead. Deathmatch Duelist Win 25 1-on-1 Deathmatches.
There's a +1 health to your left in front of the statue. Deathmatch Veteran Complete 100 Deathmatches. Last Team Standing Beginner: Earn a round for your team in Last Team Standing game with at least 2 players on each team. I was impatient, so I shot it. Different Weapons for Different Beasts: --------------------------------------- Many of the enemies have a special vunerablity to certain weapons.
Space Marine: Kill 1000 enemies with the Laser gun. Fire rockets at the wall to the left of the door to reveal a secret ammo depo. Cannon Expert: Pierce at least 10 enemies with a single cannonball. Go near it and, like 1, some other items and monsters will spawn. There is a small oasis in the desert off to the left. You'll have to use the rocket launcher to blow the door up.
I usually try to aim for the rightmost edge of the area behind the waterfall. You can see the rocket launcher from here. There is a heart inside the building. Push on the righthand wall to reveal a secret area that contains +200 armor and a scroll about Croteam. You'll see a tiny little path by that tree, which is what you're trying to hit. I assume that anyone reading this has already gone through the game and tried to find the secrets on their own, and thus will be familiar with most of the areas I describe.
A few seconds later it'll blow up and underneath the rubble you'll find a secret heart. Turn away from the door and jump up onto the roof of the adjacent building. Alternately, select multi-player, then choose Serious mode and The Grand Cathedral as the level. Jump onto the beams and walk along them to pick up a +50 secret armor. Serious Sam â 30 G : Complete the game in single player on serious difficulty. Turn around and go hit both switches on either side of the closed door the one that you couldn't open. It is the room right before the area where you need to have bull knock the door down for you.