Munchers was a series of educational/edutainment computer games produced by the Minnesota Educational Computing Consortium (MECC) for several operating systems. They were popular among American schoolchildren in the 1980s and 1990s and were the recipients of several awards. The two original games in the series were Number Munchers and Word Munchers.
In all the Munchers games, the player controlled a green "Muncher" character across a grid of squares containing a short numerical or word expression. The objective is to consume all and only the grids containing information satisfying a specific criterion (determined by the mode of play) while also avoiding the deadly "Troggle" monsters (name probably derived from troglodyte) which roamed the grid.
Eating a grid containing information that did not match the criterion of the play mode chosen or being caught by a Troggle resulted in the loss of a life.
If all grids containing information matching the criterion were eaten from the screen, the level ended and the player was presented with an amusing short scene, similar to Wile E. Coyote and Road Runner scenes, in which the Muncher foils the Troggles' plans to catch it and often destroys the Troggle in some comical manner. The game gets continually faster and harder each level.
The Troggles are monsters with two legs and a large head, whose goal is to eat Muncher and/or disrupt his progress by rearranging things on the board. Levels 1, 2, and 3, contain only one Troggle on the grid at any given time. A second Troggle appears starting with level 4, and a third appears starting with level 8. After approximately level 18, the game (especially the movement of the Troggles) accelerates to make responsible munching more difficult.
- Reggies (Trogglus normalus) - magenta in color on the Apple II, red in color in DOS, purple in color on a Macintosh; simply moves in a line unless redirected by a safety square in its path.
- Bashfuls (Trogglus timidus) - green in color on the Apple II, blue in color in DOS, pink in color on a Macintosh; moves in an arbitrary manner on the gameboard, unless approached by a Muncher, in which case he moves away from the Muncher. Became purple in later releases in the series.
- Helpers (Trogglus assistus), - also green in color on an Apple II, and also green in DOS, but magenta on a Macintosh; this Troggle eats all answers, leaving nothing behind. Became purple in later releases in the series.
- Workers (Trogglus laborus) - purple and white in color on both the Apple II and DOS but magenta and white on a Macintosh; this Troggle adds new answers and/or changes existing answers as he moves around.
- Smarties (Trogglus smarticus) - a green Troggle on most systems (yellow in DOS) with large teeth and glasses, and the most difficult enemy to avoid; always follows the Muncher on the board.
Safety squares occasionally appear to help protect Muncher from the Troggles. These are temporary havens identified by four small white rectangles on the corner of the square. No Troggle may enter a safety square; if one appears on a square a Troggle currently occupies, that Troggle dies (but may be replaced afterwards). Safety squares may disappear as quickly and randomly as they appear; hence, one must take caution not to remain in one for long.
In addition, Troggles are quite cannibalistic; if one Troggle enters a square already occupied by another, or if two of them enter one square at the same time (even if they are of the same species), one Troggle will eat the other (however, another Troggle may re-enter the board afterwards).
Tips and tricks 
Better players of the game used a number of tricks. First, they memorized the fixed Troggle movement patterns, making possible such tricks as "dogging" a Troggle: following along right behind, just one square away, from the Troggle.
Troggles pause momentarily after each move; players do not need to pause, and thus players move faster than and can always outrun Troggles. Indeed, as long as a player keeps moving, a player cannot be eaten by Troggle unless the player walks into the Troggle or becomes surrounded by multiple Troggles.
Since Troggles appear from off the side of the grid, players should typically avoid the squares at the edges of the grid to avoid being surprised by a Troggle. However, because there is a set number of Troggles that can appear on the grid at once (a higher number at higher levels), once that number of Troggles is on-screen, a player would be safe venturing to the squares at the edge of the grid.
Since a player gained extra lives whenever the player accumulated enough points, it was possible for a player to eat all relevant squares in a level except one, and then sit around and wait for Troggles to repopulate the grid with information. This had the advantage by that staying on the same early level, the level remained at the same easy setting while the player was able to rack up both points and extra lives.
If the Muncher stands in a square next to a square occupied by a Troggle, if one times the move correctly, one can move into the Troggle's square just as the Troggle moves out of the square into the square previously occupied by the Muncher. The sprites for the Muncher and the Troggle will pass through each other without the Muncher being eaten by the Troggle.
On rare occasions the safety square will appear on a square already occupied by a troggle. In this case the troggle is instantly vaporized with a comical sound. This would explain why troggles are reluctant to enter the safety square in the first place.
Word Munchers 
Word Munchers is an educational game designed to teach basic grammar skills, it was popular among American schoolchildren in the 1980s and 1990s. Related to the game Number Munchers, it was a teaching aid widely used in schools.
Gameplay was essentially that of the other Munchers games. Specific to Word Munchers were the modes of play, which includes parts of speech such as verbs or adjectives. Teachers had the options to select the vowel sounds and how difficult the word sets would be, such as whether or not to include words that break pronunciation rules.
To access administration/teachers options in most MECC titles, use Ctrl+A on the menu screen.
The current Word Munchers World Champion is a man named Thomas Hayes from upstate New York.
Number Munchers 
Number Munchers is an educational game in the Munchers series. Designed to teach basic math skills, it was popular among American school children in the 1980s and 1990s and was the recipient of several awards. It was later replaced by Math Munchers in 1995.
Specific to Number Munchers are the five modes of play: Multiples, Factors, Primes, Equality, and Inequality. Players can also choose from a "challenge" mode, which randomizes these modes. In the Multiples mode, Muncher must munch all numbers which are multiples of the number given; for example, if the designated number is 3 then Muncher must eat all 6's, 9's, and 12's and avoid numbers such as 7. In Factors the muncher seeks to ingest the factors of a given number, in Primes he craves prime numbers, and in the Equality and Inequality modes the muncher devours expressions such as 2+4 which are equivalent or not equivalent (respectively) to the designated number.
Game play begins with four Muncher lives (the one currently in play, plus three others in reserve). After scoring a certain number of points, the player gains an extra life. Players lose a life if they swallow an incorrect answer. Additionally, five different types of enemy (or "Troggle") appear throughout the game. Players lose a life if they make contact with a Troggle.
The highest known level is -127, which is equal to level 129 per wrapping.
Cut scenes 
As in the other games in the series, a player is awarded with a cut scene (reminiscent of those in Pac-Man and similar arcade games) after every third level; in this game, these are dubbed as "Great Moments in Muncher History". While these scenes are numbered (Act 1, Act 2, etc.), the order they appear in varies from game to game. Once all six have been shown, they begin to repeat themselves (starting with the scene after Level 21). The six scenes are as follows:
- A Muncher is chased by a Reggie across the screen twice, then the Muncher gets in an old-timey automobile, outruns the Troggle, and the Troggle falls down and gives up.
- Two Munchers reenact the story of William Tell.
- A Muncher races a Bashful up a mountain, plants his flag, and sings a song.
- A Muncher prank-calls a Smartie and sings the universal taunting melody  commonly associated in the United States with lyrics including "Nanny nanny boo boo", "pitcher's got a big butt", etc.
- A Muncher beats two Troggles in a beauty contest.
- Later releases of the game replaced this cut scene with one in which a Muncher stumbles through his house in the dark and then turns on the light, only to discover that he has broken all of his furniture.
- A Muncher carves his own image into Mount Rushmore.
Easter egg 
An Easter egg in the game was that between December 1 and Christmas, the Muncher would wear a Santa Claus hat (however, one would have to own a computer that remembered the date, or was never turned off, since not all computers had this technology at the time the game was popular).
The Munchers series included:
- Number Munchers
- Fraction Munchers
- Word Munchers
- Super Munchers
- Math Munchers Deluxe
- Word Munchers Deluxe
- Knowledge Munchers Deluxe
- Troggle Trouble Math (a spin-off)