Big Head mode
Go to the lobby. Select the bell three times, then the phone once and repeat the process. If done correctly, heads will be large. They will return to normal after restarting the game.
Easy "Ego-agogo" Achievement
Go to the lobby. Select the bell three times, then the phone once and repeat the process. If done correctly, heads will be large. They will return to normal after restarting the game.
Easy "Inappropriate Touching" Achievement
Go to the "Friends" screen and keep selecting your own avatar and your friends' avatars. You will get a money bonus and a reputation bonus for doing this.