Perception I, II, III

Perception I, II, III is a set of three perception related games on three diskettes.

• Perception I tasks the player to use the paddles to draw a line on the screen that's just as long as the one the computer has drawn. Points are scored based on how well it matches. The room is deliberately deceptive to make the task harder.
• Perception II is purportedly based on tests developed for World War II spies. The player must remember complex visual shapes with only small visual differences. They are seen through a narrow mask. The player is graded with a weighted score.
• Perception III requires the player to memorize the size of shapes. The program can be set to various difficulties, by changing the display time and shape variety.

A later release of the game added a fourth game with a hand-eye coordination game.