Squiggly Worms features a large plastic "apple" that contains 20 plastic worms inside of 20 holes. The apple is mechanically operated by pulling a lever (no batteries required). A player pulls the lever which causes the worms to move up and down, popping out of the holes. The player must grab the worms one at a time and check to see if the color on the tail matches one of the color cards in his hand. If it matches he keeps the worm. If it doesn't match he puts it back in the hole. Other players can watch to see what colors are put back in case they need them. When the worms stop moving the player's turn ends. The player with the most color matches wins.