Move the mouse pointer over the area of where you want the glove to go. The glove has to touch the blue snowflakes to respawn them and they will keep coming down. The grey bar at the bottom of the screen is the floor and when the snowflakes touch it they will respawn. Oh yeah Scratch isn't very good at recognizing when you touch the snowflakes half the time so uh they don't respawn or count points sometimes..
UPDATE: Points system is now available and the game is now playable! Yay!