I'm going to owe Hillan money or something... 

I've got two ideas, the first of which is 'Kid Boomerang' essentially a younger character who inspired by Captain Boomerang fights crime using self made boomerangs. May possibly be a meta with limited telekinesis allowing him to use numerous different objects like a boomerang. 

Second idea is 'Thrillseeker' a vigilante whose adrenaline activates superhuman qualities in his body such as accelerated reflexes, perception and cognitive reactions along with enhanced speed, strength and a high threshold for pain. The drawback being a resistance to thrill as he becomes accustomed to the vigilante life and thus becoming dependent on artifical adrenaline shots.