Click space bar to see him talk. Right arrow to change background. Click each item of clothing multiple times to change the colour of the item. Click the right arrow to change the style of one shirt. To reset the items click the green flag.
Pretty easy to do. Certainly a must-do! Perfect for those who love customization and fashion games in particular. Loads of free choice while programming this. You can have as many (or as fewer) items as you'd like.