Blue Ball - sits in one spot, umoving.
Red Ball - moves freely, affected by gravity and links.
Gold Ball - like the red ball, but it also 'rotates' other balls that are connected to it in a clockwise direction.

Black Link - standard link, maintains its length.
Purple Link - like black link, but stretches more easily
Green Link - slowly grows and shrinks in length.
Cyan Link - same as green, but changes on different cycle.

Scissors - cuts links and destroys balls.

Go, Pause, Stop - three game speeds.