Around forty percent of Standard Entry recruits in the British Army do not have the required numeracy skills. The majority of these recruits are between the ages of seventeen and thirty. Current training interventions, including paper-based workbooks, are not sufficient to engage this young, technically competent target audience. Epic had been commissioned to design a basic skills numeracy programme to support the training of entry recruits in the British Army. 'Operation Numerika' is delivered on Nintendo DS and is closely evaluated to monitor the process of its users. As technical Art Director on the project I created the look, feel and UI. This was a complicated technical challenge due to the technical limitations and guidelines on Nintendo's handheld system.