When I start playing with my cat with a Laser pointer, I usually start with the common red dot laser. My Cat, Being a big hunter at heart usually starts going on the hunt for the red dot, but sometimes she doesn’t really feel like playing. BUT, as soon as I switch to the white Trixie Light pointer (mine has a fish design), no matter the what, my cat goes crazy. Her whole energy shifts, and she starts following, squatting and jumping on the light.
I think Trixie got it right when figuring out that the white light is much more attractive for cats. You have to try it to see the difference.