Developing an effective game requires a lot of time and money. Games are contrived, irrelevant, and pointless. Games are not intellectually stimulating. Games are not suited for participants from some cultures (such as the Japanese) and from some professions (such as engineering). Games don't work with technical training. Games require special equipment and facilities. In a game, too much time is wasted on learning too little content. Most games are childish and frivolous. Participants do not have the necessary skills to learn from each other. Participants don't like making fools of themselves in front of others. The focus on winning the game prevents participants from learning the content. Trainers lack facilitation and debriefing skills that are required for effective use of training games.