Halloween monsters merge will take you into the world of Halloween with the help of a Seiko puzzle. Drop the heads of various monsters onto the playing field from top to bottom. When resetting, push two identical heads together to get a new monster that is slightly larger. This puzzle has features that distinguish it from the classic versions. Periodically, one of the monsters appears in the middle of the field. It is motionless and becomes an obstacle to free fall. To get rid of it, you need to create a certain number of similar monsters. You will see the task directly on the frozen monster in Halloween monsters merge.