<p>A light signalling system is used in an amusement machine (1). The light signalling system comprises a control means (3), which receives signals generated by various events in the amusement machine (1). The control means (3) uses these signals to control the brightness and colour of a light emitting device(12), which is housed in a card reader (2) on the amusement machine (1), so as to produce a plurality of patterns and animations. The patterns and animations thus act as a visual stimulus to alert the user of the amusement machine (1) of the occurrence of significant events generated by the amusement machine (1).</p>
