I denna rapport vill vi lyfta fram de möjligheter och begränsningar som finns för att skapa nya engagerande läromiljöer genom att implementera ett mobilt lärospel i ett svenskt skolsammanhang. För att exemplifiera detta har vi i vårt projekt skapat ett mobilt lärospel kallat Agent O, som två högstadieskolor med ungdomar mellan 15-16 år gamla fått testspela. / This essay is a product of our bachelor of science in interactiondesign. Our focus in this project was to evaluate the mobile learning game from MIT and transform it so it would fit into Swedish schools and to redesign the interface from an interactiondesigners perspective and make it more goal-orientated for teenagers at the age of 13 to 16 years old. This resulted in the mobile learning game called Agent O. A learning game with the main purpose to evolve an interaction between the pupils and the pedagogical material through a handheld computer. Taking the learning procedure to a level where the learning part differs as when reading a textbook or solving a mathematic equation. Learning by doing may encourage the teenager to be active in the lecture in a progressive way.In this essay we present the theoretical basis by giving a background and context description of technology where it has been used as an educational complement. We will describe the limitations when designing an interface for mobile games, and look upon the possibilities for this kind of mobile learning game in Swedish schools. We have performed two main usertests at two schools in Malmö and the results of these tests are presented in the report.