Does anyone play xsoldier?

Is so, how do you kill that big ship/thing that goes back and forth
at the top of the screen?

Fun little game but almost nothing to be found anywhere about how
to play it.

Any other game recommendations for a 5 and a 6 year old would be 
appreciated.

Thanks.

-- 
Paul Rech
pauljrech at acm.org
rechpj at bitstream.net
prsyscon at real-time.com