One of the "Easyplay Kids" series. This one is a simple dice-roller.
Each player has a set of five 6-sided dice showing one of five different monsters and a rocket. One monster is revealed at random from a deck of five cards and players simultaneously roll their dice (one at a time). The round ends when one player has four dice matching the monster on the card and the fifth die does not show the rocket.
The losers pay the winner in "Mars Maggot" tokens (to feed the monster). If they can't afford to pay then they must discard a "Rocket" token. The first player to lose all their rocket tokens loses the game; the Player with the most "Mars Maggot´s" win.