i could laugh of something like Jared e and this names in his comments... ya they spawn fast behind u... but if you would go out for 1h -2h and do some for your conditions u could act faster then they can hit you, this game is good, but after 5-10 min did i got all upgrades + helpers... after this got this fast boring i didnt wanted to get score, btw is the Energy Prize get to hugethe helpers are just less usefull cause they just hit if they shoot on mass, i rate for this 3/5 good idea but after some play times do it get broing