Press space for expressions :3 Press the right arrow to change the cat's colour. Press the up arrow key to change eye colours. Press the down arrow for patterns, and press the left arrow key to change collars. To have a collar press 1 and if you don't want it any more, press 2.
Keep on pressing the left arrow key to get to the spike collars :3 Also keep on pressing the down button to get to the spots :D The only way too have no spikes or spots is to keep on press the down arrow key until your spots or spikes colour turns to the colour of your cat :3