Serious Sam: The Second Encounter: Tips And Tactics
At the first level in the temple there is a place where you need to run under the walls, which are lowered that rose. So, if you turn back, then you will see the dark wall (in fact it is a darkened passage in the secret z1). When you go to this room, you will see in the lower something like a rebus. There are several highlighted letters. They need to jump to get the word Mental. If everything is done correctly, there will be a passage where the life is +100 lies with the light bulbs.