Teams of six are given free reign to apply all of the skills, knowledge and understanding that they have learnt to solve a challenging problem. This involves designing, building, testing and demonstrating a complete electronic system, from scratch, in just three weeks! At the end of the exercise, the students produce videos and presentations to pitch their designs to a judge from industry, who awards prizes to the members of the most impressive team. Each year, we have a different problem specification for the project, which is not revealed to the students until the last minute. Recently, the objective was to build a portable video game system and another year the students built football-playing robots - the theme of each year's exercise is a closely guarded secret.