How do you switch characters in The Simpsons game ps3?

In The Simpsons Game for PS3, you can switch characters by pressing the triangle button on your controller. This will bring up a character select wheel that allows you to switch between the four main characters: Homer, Marge, Bart, and Lisa. Simply highlight the character you want to switch to and press the X button to confirm your selection. Each character has unique abilities that are essential for solving puzzles and progressing through the game.