Space Invaders Book Two: Boy Battles Bug

It's a no-holds-barred grudge cage match, and Jimmy and his team find themselves against the ropes.
The disgusting bug aliens have gone full throttle on implementing their worlddominating plans. They're replacing humans with exact replicas who are heckbent on destroying mankind! Jimmy finds himself having to leave the comfort of his small town to
track down the parts to a super weapon that will obliterate the invasion threat, once and for all. But it won't be easy as the bug alien hordes are unloading every trick up their exoskeletal sleeves. DeadWalkers, giant snow owls, metal dragons, and a possessed limousine driver who hates children.
Fortunately, Jimmy's mysterious alien-enhanced backpack gives him the power needed to kick some serious alien butt (if they have butts). That, coupled with ninja skills learned from Saturday morning cartoons and low-budget monster serials, can give Jimmy the edge
to defeat the advancing alien horde.
Experience a video game world brought to life that answers the unasked question: What if a ten-year-old was called upon to save mankind from alien robot invaders?