In "Number Munchers," the player controls a green main character, the Muncher, guiding it across a grid that displays a short numerical expression. The goal is to eat, or munch, information in squares of the grid that fulfills a certain criterion, set by the mode of play. The player chooses a mode of play from the five available: Multiples, Factors, Primes, Equality, Inequality and a randomizing mode, called Challenge.
In the primes mode, for example, the player must munch only squares containing prime numbers, such as 0, 1 and 3. The player moves up in levels by identifying all the correct squares in the grid. When a level ends successfully, the game displays a short, comical cartoon. The difficulty and speed of play increase with every level. The Muncher has four lives at the beginning of a game; however, as it makes its way across the grid, Troggle monsters try to thwart the player’s game either by reorganizing the grid or by eating the Muncher directly. The player might also lose by eating incorrect information on the grid in any given play mode.
Number Munchers is an educational math game, released in 1990 by its developer and publisher, Minnesota Educational Computing Consortium, or MECC, for play on several platforms, including Apple II, DOS and Macintosh.