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The ee'MALL was an online purchasing system by Konami and Bemani for the Pop'n Music franchise. It is required to use an e-AMUSEMENT card to buy songs, options, and such from various Bemani games. The ee'MALL services were terminated on May 1, 2006, as the songs from its game were transferred to Pop'n Music 14 FEVER!
A sequel dubbed ee'MALL 2nd avenue was released on December 17th, 2003.
You have to play various minigames to earn points for purchasing songs.