IS THE GAME SUPOSSED TO DO THAT OR IS IT A GLITCH BECUZ WEN I GO TO SPRINT IT FLASHES A BLUE LIGHT ALMOST BLINDING ITS BECUM A PROBLEM IS THERE ANYONE ELSE HAVING THAT PROBLEM AND THIS IS IN MULTYPLAYER...
it's normal. It also happens when you do a power jump (holding X). I think they did it to indicate that you are using energy for an ability rather than to just warn you that it is depleting.