Once a room is completed, the player has the opportunity to choose any other room, although the game automatically increases the room-number and presents that one as the next puzzle. To choose another room, a menu command is available. A completed puzzle can not be solved again, to prevent a player to increase his score by solving the same puzzle over and over. When a player changes rooms in the middle of a puzzle in progress, the player is punished by loosing 50 points. The effect is the same as aborting the current puzzle and then choosing another room.
Some rooms contain more than one difficult part.
The current situation is then automaticly remembered. Scoring and screen lay-out. The scoring follows a simple scheme. Every room completed adds a bonus to the total score. This bonus depends on the difficulty level of the room.