Punctuation Invaders 1.0 - Punctuation Invaders is an
arcade grammar game pitting
the playeragainst
extraterrestrial invaders in
the form of
unpunctuated,uncapitalized
sentences. The student fires a
laser to punctuate wordswhile
avoiding shots from the alien.
But the sentence must
becompleted before the aliens
get close enough to beam up a
human.