Items can be obtained that add an extra level of game play.

Your extra level of service is not found in most chain bookstores either.

A successful solution can sometimes be found by making an extra level in the room.

This version has time limit of 24 hours, and contains extra levels.

There are a total of 24 extra levels to unlock.

Artists want an extra level of control, and it may come at a price.

This game was in fact the same as the original but with extra levels.

"I think we've got an extra level to go through."

Most insurers offer extra levels of cover beyond the basic legal requirement.

I am not considering an extra level of security because there's only 26x26 different starting locations to choose from.