def wall_test():
print """
SNAKE for METROPOWALL
Arrow keys control. Press 'q' to exit.
Collect all the apples to win a special surprise!
"""
wd = WallDriver(refresh=30,host='localhost',port=7778)
k = KeyboardHandler()
s = Snake()
k.register_arrows(s.up,s.right,s.down,s.left)
k.register_keypress('q', wd.stop)
k.start()
wd.set_scene(s)
wd.start()
return wd,s
