E5M6: The Underworld

The Underworld is the sixth level of Dimension of the Past. This level brings back the Runic theme and is entirely indoors.

This level leads to the second Secret Level of Dimension of the Past, the House of Doom.

Secrets

 * #1) After you have left the first sewer tunnel, you come to a room that is connected to a corridor with a staircase. In the upper, dark end with the yellow lamps, you can see a blood-smeared plate on the ceiling. Shoot it and at the bottom of the stairs the other looking wall opens up. In the secret corridor you will find two small Cells and two 15 Health.
 * #2) When you fall out of the second wind tunnel into the corridor with the golden key, there is a Quad Damage right behind you. Collecting it counts as secret.
 * #3) Following the corridor after the golden rune key door, there is a room in which two higher located doors open after entering. On the back wall of the room behind, between the doors, is a shootable button. It opens the door on the right. The passage behind leads to a large box of Shells and the Yellow Armor.
 * #4) While on the moving platform to reach the exit, stay on it while it approaches the exit and carry on and it will take you to the Secret Rune Gate to E5M8: The House of Doom. In front of it you will find 25 Health.

Enemies
Easy: 49

Normal: 61

Hard: 69