The panels will turn faster in the higher stages. You can enroll to the scoreboard. - easy Requires to find 9 pairs. The outer panels turn constantly. Contains one dammy panel which doesn't make a pair with. - normal Requires to find 16 pairs. The outer panels turn constantly. - hard Requires to find 16 panes. The outer and the inner panels turn constantly. Contains two dammy panels which don't make a pair with.