Fallout 3/Tranquility Lane

You arrive in Tranquility Lane, which is an alternate reality simulation provided by Vault Tek.

Soon after you enter the simulation, you are informed by a resident to play with Betty in the park. She is by herself and wants you to participate in a few games.

Note: You do not have access to your items or VATS. In addition, you cannot return to this location once you exit.

Betty's Games

 * First, she asks you to make Jimmy cry.
 * Next, she asks you to ruin the Rockwells' marriage (without killing them.)

Note: Playing her game, even though it seems to be the only option, causes you to lose karma.

Failsafe terminal
An old woman walking around the lane will tell you that this place is a simulation, and will tell you that a failsafe terminal is located within the abandoned building. This building isn't exactly abandoned as the front room has several objects.

To unlock the terminal, you need to decode a combination. When you activate one of the items, you will hear a small tone; if the item was incorrect, it is followed by a buzzing sound. One combination is the Radio, Pitcher, Gnome, Pitcher, Cinder, Gnome and Bottle.

Once you unlock the terminal, you can activate the Chinese invasion to open the exit.