Light Race is another Gym game and this one is a pseudo Dance Dance Revolution style mini game. Keeping your combo is key to getting the high score and you do that by not making any mis-steps. Play on Easy and you will only have to deal with left side, right side, left front and right front steps. The pattern does not repeat everytime so go as quick as you can without making an error. The faster you go will determine how fast the next floor panel lights up so you do want to move quickly too.
You want to stand back as far as you can for this event and make sure the Kinect has a good view of your feet. The left and right side steps are not too bad but for the front steps you will want to be sure to reach far enough forward to tap the target.