The story centers on a child named Mark who, on his way home from a baseball game, is approached by a winged, gargoyle-like alien named Bert who seeks assistance in ridding evil monsters from his realm. The player takes the role of Mark, who wields his bat to attack and to deflect projectiles. The game both pays homage to and parodies horror pop culture, alternately featuring enemies and locations based on classic horror icons, and parodic reinterpretations. (Wikipedia)