Sims can be imported into a city for use in the "My sim" mode. Devices without a SIM card slot usually don't have the IMEI code. Some mobile phones support use of two SIM cards, described as dual SIM operation. Some smartphones with Google SIM cards can use Google Internet services. The use of SIM cards is mandatory in GSM devices. The game plays as a rhythm game with few elements from raising sim games. It is used by sticking it on top of a regular SIM card. It is also possible to store contact information on many SIM cards. The number printed on the SIM card is usually a subset of this. It provides its own functionality while passing through the functionality of the SIM card underneath. "Amagami SS" is a 2010 anime series based on the PS2 Dating sim "Amagami". Norris has a passion for sim racing. The gameplay combines overlapping action role-playing, dating sim and visual novel elements. Matt Bertz of "Game Informer" called "NBA 2K12" the "best basketball sim ever". The operating voltage of the majority of SIM cards launched before 1998 was .