Mobile game is games made for mobile devices such as smartphones, feature phones, pocket PCs, personal digital assistants (PDAs), tablet PCs, and portable media players. Mobile games range from basic (like Snap on older Nokia phones) to sophisticated (3D and enhanced reality games). Today’s mobile phones – especially smartphones – have a wide range of connectivity features, including Infrared, Bluetooth, Wi-Fi and 3G. These technologies simplify wireless multiplayer games with two or more players. Today, mobile games are downloaded from mobile app stores as well as mobile operator portals, but in some cases OEM or handheld devices are pre-loaded on the handheld device when purchased via infrared connection, Bluetooth or memory card, or hand-loaded with side wires. Downloadable mobile games were first commercialized in Japan circa the launch of NTT DoCoMo’s i-mode platform in 1999, and by the early 2000’s were available through a variety of platforms throughout Asia, Europe, North America and ultimately most territories where modern carrier networks and handsets were available by the mid-2000’s.