Video games are very popular today and the electronic entertainment industry is in many areas equal to the more mature entertainment industries like film and music in terms of usage and revenues. The MOOSES (Multiplayer On One Screen Entertainment System) allows players to play on one big screen together with the use of their mobile phone as a game controller. The framework was designed for easy development of multiplayer games in Java and C++.Flash is a very popular technology on the Internet, with a great many people using and developing all kinds of games, video players and other software applications. Flash applications are easy to develop due to a modern programming language and a vast amount resources available online.In this thesis the possibility of creating Flash games for MOOSES will be explored. A set of components will be developed which will allow Flash games to use the MOOSES framework. These components will be designed to aid the game creation as much as possible and still be generic enough to allow as many game types as possible. Three different games will be developed using the components and each game will focus on a different multiplayer mode. In the end, the components, the three games, and the Flash platform will be evaluated.