As per the previous level, For Carnage, Apply Within Durandal wants the player to destroy his core logic centers. In-game, these are represented by eight large destroyable circuits located in the center of this level.
As the circuit panels are destroyed, the player is contacted by Tycho, who says to give up and that Durandal is being downloaded to a containment unit of his specified design aboard the Battle Group.
Upon destroying all the circuits, the player is automatically teleported to the next level, The Big House.
Begging For Mercy Makes Me Angry is an extremely linear level with the following pattern: the player destroys a circuit panel in the center which open a door to an exterior section. Within this exterior section is a switch that will open another circuit panel. This pattern is continued until all the circuits have been destroyed, at which point the player is teleported out.
The level itself is fairly symmetrical with the left and right sides differing only with minor changes.
Enemies will teleport in regularly in center area as the player progresses through the level.
There are no known secrets in this level.
Marathon 2: Durandal - Level 17: Begging For Mercy Makes Me Angry