Havok, Endorphin and others were considered, but ultimately a RenderWare package called 'Drives' was used to model the joints of the human body. The game relies extensively on physics to model the skateboarders' movement.
The developers found that in order to receive accurate information from the very fast analogue stick motions used when playing the game, input data from each control pad had to be read at a rate of 120 Hz.
The game's 'flick it' control system began development long before any graphics had been implemented: the initial prototype simply read analogue stick motions and displayed a basic text message saying what trick had been performed, along with speed and accuracy ratings.