Turn the slots back and front, try to catch the falling hexagons.
Revolving Hexagons can be caught by both kinds of slots.
Hexagons with special marks are not necessary, which means if you miss them, you dont fail the game, you just miss the special bonuses.
Hexagon with a red heart gives you one more life.
Hexagon with a purple star solves next wave.
Hexagon with a number increases the score points.