Lisa Simpson is a small child and one of the main members of the Simpson family. She is the daughter of Homer and Marge and the sister of Bart. Lisa is a playable character in the game and the player plays as her on Level 3 of the game.Character costumes refers to the outfits that the player can purchase for character that they are playing as in that level. The costumes (usually three per level) can be purchased from a clothing point somewhere on each map, and purchasing all the customers count towards getting 100% on that level.These costumes can be bought at either the Android's Dungeon or the Observatory. These costumes are references to outfits that appear within the series.