It's a curious presumption to name a visiting alien race The Ravagers before first contact where any indication of their motives might be established.

It's probably this hurried conclusion-jumping that results in excessively-sized ants terrorising the human race and leaving their sticky footprints all over the city's high-rise structures.

So yes, aliens invade, and your military-type self has a selection of guns effective in removing their lives.

Initial impressions aren't fantastic, as the programmers presumably popped to the pub and left the graphics to their work-experience youngsters.

But if you can suffer through this (what's a few floating soldiers between friends...), defending the planets against nasty hoards - and online with up to three like-minded chums - is a pretty engaging way to spend time on the toilet.

...or wherever you choose to use your Vita.