Users can personalize the "front cover" of the diary with stickers, draw or color in pictures with a Paint program, and create a personal avatar by customizing clothing and physical features. There's also a calculator and a horoscope, which offers monthly forecasts, love advice, and handy tips -- like the fact that you can stick your nails in a bowl of cold water if you want your nail polish to dry faster. Diary Girl also features a handful of mini-games that can be played either alone or with a friend wirelessly. These are extremely simple, though fun, diversions that include mah jong, a music game, a jigsaw puzzle, and a maze where the goal is to navigate through with the stylus collecting gems and keys. The diary can be "locked" with a password to keep out prying eyes, although the password can also be reset through a simple procedure, meaning information is never completely private.