The goal of our work is to give a user equipped with an RFID-enabled mobile handset (mobile phone, PDA, laptop.. .) the ability to access contents of distant elements of the system (tags or handsets), without physically moving to them and without using a Wireless Area Network. Our solution consists in an RFID-based Distributed Shared Memory (RDSM). After describing RDSM, we present its demonstration: a pervasive game which relies on RDSM to analyze data stored in distant elements (without any Wireless Area Network). We conclude by presenting the analysis of the players' feed back.