Bool (Windows)

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Bool is an early game by Mark Essen. The player needs to keep a white ball afloat in different levels and collect yellow balls and orange squares before running out of time or thrust power. Each level contains a number of balls and squares, and triangles that provide an additional bar of thrust. Completing the level is done by returning to the white starting point with all items aboard before running out of thrust. To do so, the player needs to let go of the controls every now to avoid waste of power and then to let the ball glide along with the scenery. Items are collected by activating a rope that reels them in. The environment cannot be touched directly. When this happens three times, the game is over.

Starting from the title screen, the game's font immediately changes into an illegible typeface, which deliberately makes it impossible to read any of the game commands or menu text. Finding out how to get the game to start is a challenge itself. All letters of the alphabet are included as separate images with the game files. By comparing or replacing the images, it is possible to decipher it.


Bool Windows Climbing a hill ... there is never enough thrust.
Bool Windows Main menu
Bool Windows Title screen (after transforming to the new alphabet)
Bool Windows Basic instructions

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  • Bool (Download the game, free of charge.)
Sciere (510672) added Bool (Windows) on May 31, 2009