- Perfect Single Play We have focused on heightening the most important qualities of music games, by taking into consideration the feedback from game enthusiasts, from sync to note angles, note size, note and background color, as well as types of categorized judgment criteria. - Compete Against the Globally Renowned There is not only a graph which enables you to view the player’s skills in a glance, a social feature which gives you a chance to boast to your friends. - New Skin System Full of Individuality A strong customizing system is supported where separate skin patches can be fused or a completed set is available. Enjoy 'O2Jam - Music & Game' on your own personalized play screen. Don't miss out the fun changing appearances of each skin type as you level up 'Fever' stages. - Offline Mode Where You Can Play Anywhere, Anytime A feature where you can play freely disregarding the network connection has been added. The best rhythm game available where you can play anywhere, anytime, s...